111

2025-11-15 20:25:57 +08:00
parent 5478d0ed37
commit bb4a37acc4
99 changed files with 4315 additions and 16 deletions
--- a/15.1/15.1.csproj
+++ b/15.1/15.1.csproj
@@ -0,0 +1,11 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net8.0</TargetFramework>
+    <RootNamespace>_15._1</RootNamespace>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>
--- a/15.1/15.1.sln
+++ b/15.1/15.1.sln
@@ -0,0 +1,25 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.14.36623.8 d17.14
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "15.1", "15.1.csproj", "{816086E8-93CF-41C4-8DC4-EE4B44FE918B}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{816086E8-93CF-41C4-8DC4-EE4B44FE918B}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{816086E8-93CF-41C4-8DC4-EE4B44FE918B}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{816086E8-93CF-41C4-8DC4-EE4B44FE918B}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{816086E8-93CF-41C4-8DC4-EE4B44FE918B}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {F6856EF0-4074-451B-9ED7-D1F4FC4E61BD}
+	EndGlobalSection
+EndGlobal
--- a/15.1/Program.cs
+++ b/15.1/Program.cs
@@ -0,0 +1,54 @@
+using System;
+using System.Drawing;
+namespace _15._1
+{
+    class MathTriangle
+    {
+        private double sideA;
+        private double sideB;
+        private double sideC;
+        public MathTriangle(double a, double b, double c)
+        {
+            sideA = Math.Abs(a);
+            sideB = Math.Abs(b);
+            sideC = Math.Abs(c);
+        }
+        public double GetArea()
+        {
+            double s = (sideA + sideB + sideC) / 2;
+            return Math.Sqrt(s * (s - sideA) * (s - sideB) * (s - sideC));
+        }
+        public double GetPerimeter()
+        {
+            return sideA + sideB + sideC;
+        }
+        public double GetHeight()
+        {
+            double area = GetArea();
+            return (2 * area) / sideA;
+        }
+        public double GetMaxSide()
+        {
+            return Math.Max(sideA, Math.Max(sideB, sideC));
+        }
+        public double GetMinSide()
+        {
+            return Math.Min(sideA, Math.Min(sideB, sideC));
+        }
+        private double GetPartSideA()
+        {
+            return Math.Sqrt((Math.Pow(sideB, 2.0) - Math.Pow(GetHeight(), 2.0)));
+
+        }
+        static void Main()
+        {
+            MathTriangle triangle = new MathTriangle(16.0, 10.0, 8.0);
+            Console.WriteLine("三角形三边长分别为: {0}, {1}, {2}", triangle.sideA, triangle.sideB, triangle.sideC);
+            Console.WriteLine("三角形的面积为: {0:#.00}", triangle.GetArea());
+            Console.WriteLine("三角形的周长为: {0}", triangle.GetPerimeter());
+            Console.WriteLine("三角形的A边高为: {0:#.00}", triangle.GetHeight());
+            Console.WriteLine("三角形的最大边为: {0}", triangle.GetMaxSide());
+            Console.WriteLine("三角形的最小边为: {0}", triangle.GetMinSide());
+        }
+    }
+}
--- a/15.2/15.2.csproj
+++ b/15.2/15.2.csproj
@@ -0,0 +1,11 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net8.0</TargetFramework>
+    <RootNamespace>_15._2</RootNamespace>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>
--- a/15.2/15.2.sln
+++ b/15.2/15.2.sln
@@ -0,0 +1,25 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.14.36623.8 d17.14
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "15.2", "15.2.csproj", "{19E0F84F-ABD6-4CA7-A1FE-ECFA8580D0CA}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{19E0F84F-ABD6-4CA7-A1FE-ECFA8580D0CA}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{19E0F84F-ABD6-4CA7-A1FE-ECFA8580D0CA}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{19E0F84F-ABD6-4CA7-A1FE-ECFA8580D0CA}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{19E0F84F-ABD6-4CA7-A1FE-ECFA8580D0CA}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {99434B3A-CA5C-4FB3-AB1F-F7DA100B86A5}
+	EndGlobalSection
+EndGlobal
--- a/15.2/Program.cs
+++ b/15.2/Program.cs
@@ -0,0 +1,30 @@
+using System;
+using System.Threading;
+
+namespace _15._2
+{
+    public class RandomObjectDemo
+    {
+        static void RunIntRan(Random randObj)
+        {
+            for (int i = 0; i < 6; i++)
+            {
+                Console.Write("{0,10}", randObj.Next());
+            }
+            for (int i = 0;i < 6; i++)
+            {
+                Console.Write('{1,10}',randObj.NextDouble());
+            }
+        }
+        static void Fixseed(Random randObj)
+        {
+            Random fixseed = new Random();
+            fixseed.Next();
+        }
+        static void autoseed()
+        {
+            Thread.Sleep(1);
+            Console.WriteLine("时间");
+        }
+    }
+}
--- a/15.3/15.3.csproj
+++ b/15.3/15.3.csproj
@@ -0,0 +1,11 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net8.0</TargetFramework>
+    <RootNamespace>_15._3</RootNamespace>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>
--- a/15.3/15.3.sln
+++ b/15.3/15.3.sln
@@ -0,0 +1,25 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.14.36623.8 d17.14
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "15.3", "15.3.csproj", "{9E5AF88C-21DA-425C-A729-EF94F8612EBA}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{9E5AF88C-21DA-425C-A729-EF94F8612EBA}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{9E5AF88C-21DA-425C-A729-EF94F8612EBA}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{9E5AF88C-21DA-425C-A729-EF94F8612EBA}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{9E5AF88C-21DA-425C-A729-EF94F8612EBA}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {A401EAC7-95C0-4EE7-AACB-4DCF57437BA2}
+	EndGlobalSection
+EndGlobal
--- a/15.3/Program.cs
+++ b/15.3/Program.cs
@@ -0,0 +1,26 @@
+namespace _15._3
+{
+    internal class Program
+    {
+        static void Main(string[] args)
+        {
+            const string s4 = "    ";
+            int nYear = DateTime.Today.Year;
+            int nMonth = DateTime.Today.Month;
+            DateTime d1 = new DateTime(nYear, nMonth, 1);
+            Console.WriteLine("{0}/{1}", d1.Year, d1.Month);
+            Console.WriteLine("SUN MON TUE WED THU FRI SAT");
+            int iWeek = (int)d1.DayOfWeek;
+            int iLastDay = d1.AddMonths(1).AddDays(-1).Day;
+            for (int i = 0; i < iWeek; i++)
+            {
+                Console.Write(s4);
+            }
+            for (int i = 1; i <= iLastDay; i++)
+            {
+                Console.Write(" {0:00} ", i);
+                if ((i + iWeek) % 7 == 0) Console.WriteLine();
+            }
+        }
+    }
+}
--- a/15_4/15_4.csproj
+++ b/15_4/15_4.csproj
@@ -0,0 +1,11 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net8.0</TargetFramework>
+    <RootNamespace>_15_4</RootNamespace>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>
--- a/15_4/15_4.sln
+++ b/15_4/15_4.sln
@@ -0,0 +1,25 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.14.36623.8 d17.14
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "15_4", "15_4.csproj", "{A5D84909-CEAE-418D-8431-F44DFC39C3AF}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{A5D84909-CEAE-418D-8431-F44DFC39C3AF}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{A5D84909-CEAE-418D-8431-F44DFC39C3AF}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{A5D84909-CEAE-418D-8431-F44DFC39C3AF}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{A5D84909-CEAE-418D-8431-F44DFC39C3AF}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {8D89CBFF-8DF9-4F24-8802-9BF5740164E4}
+	EndGlobalSection
+EndGlobal
--- a/15_4/Program.cs
+++ b/15_4/Program.cs
@@ -0,0 +1,36 @@
+using System;
+using System.Collections;
+
+namespace _15_4
+{
+    internal class Program
+    {
+        static void Main(string[] args)
+        {
+            int countA = 0, countE = 0, countI = 0, countO = 0, countU = 0, countALL = 0;
+            string str = Console.ReadLine();
+            str = str.ToUpper();
+            char[] chars = str.ToCharArray();
+            foreach (char c in chars)
+            {
+                countALL++;
+                switch (c)
+                {
+                    case 'A': countA++; break;
+                    case 'E': countE++; break;
+                    case 'I': countI++; break;
+                    case 'O': countO++; break;
+                    case 'U': countU++; break;
+                    default: break;
+                }
+            }
+            Console.WriteLine(countALL);
+            Console.WriteLine(str);
+            Console.WriteLine("A:{0}", countA);
+            Console.WriteLine("E:{0}", countE);
+            Console.WriteLine("I:{0}", countI);
+            Console.WriteLine("O:{0}", countO);
+            Console.WriteLine("U:{0}", countU);
+        }
+    }
+}
--- a/15_5/15_5.csproj
+++ b/15_5/15_5.csproj
@@ -0,0 +1,11 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net8.0</TargetFramework>
+    <RootNamespace>_15_5</RootNamespace>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>
--- a/15_5/15_5.sln
+++ b/15_5/15_5.sln
@@ -0,0 +1,25 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.14.36623.8 d17.14
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "15_5", "15_5.csproj", "{79BC6493-706C-4DCF-A78E-30B0D2CB1FA8}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{79BC6493-706C-4DCF-A78E-30B0D2CB1FA8}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{79BC6493-706C-4DCF-A78E-30B0D2CB1FA8}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{79BC6493-706C-4DCF-A78E-30B0D2CB1FA8}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{79BC6493-706C-4DCF-A78E-30B0D2CB1FA8}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {908C2BE7-032B-4A3E-BCBD-721A5B8AF689}
+	EndGlobalSection
+EndGlobal
--- a/15_5/Program.cs
+++ b/15_5/Program.cs
@@ -0,0 +1,19 @@
+using System;
+using System.Text;
+
+namespace _15_5
+{
+    internal class Program
+    {
+        static void Main(string[] args)
+        {
+            StringBuilder sb = new StringBuilder("ABC", 50);
+            sb.Append(new char[] { 'D', 'F', 'E' });
+            sb.AppendFormat("GHI{0}{1}", 'J', 'k');
+            Console.WriteLine("{0} chars,内容为{1}", sb.Length, sb.ToString());
+            sb.Insert(0, "Alphabet---");
+            sb.Replace('k', 'K');
+            Console.WriteLine("{0} chars,内容为{1}", sb.Length, sb.ToString());
+        }
+    }
+}
--- a/15_7/15_7.csproj
+++ b/15_7/15_7.csproj
@@ -0,0 +1,11 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net8.0</TargetFramework>
+    <RootNamespace>_15_7</RootNamespace>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>
--- a/15_7/15_7.sln
+++ b/15_7/15_7.sln
@@ -0,0 +1,25 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.14.36623.8 d17.14
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "15_7", "15_7.csproj", "{79C1A3AF-2C09-4966-8EC3-9156C7A58750}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{79C1A3AF-2C09-4966-8EC3-9156C7A58750}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{79C1A3AF-2C09-4966-8EC3-9156C7A58750}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{79C1A3AF-2C09-4966-8EC3-9156C7A58750}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{79C1A3AF-2C09-4966-8EC3-9156C7A58750}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {322B6BB6-0C56-4401-8745-CB8F1D6304A0}
+	EndGlobalSection
+EndGlobal
--- a/15_7/Program.cs
+++ b/15_7/Program.cs
@@ -0,0 +1,23 @@
+using System.Text.RegularExpressions;
+
+namespace _15_7
+{
+    internal class Program
+    {
+        static void Main(string[] args)
+        {
+            MatchCollection mc;
+            string[] result = new string[20]; int[] matchposition = new int[20];
+            Regex r = new Regex("abc");
+            mc = r.Matches("123abc4abcd");
+            Console.WriteLine("源字符串123abc4abcd");
+            Console.WriteLine("匹配字符串abc");
+            for (int i = 0; i < mc.Count; i++)
+            {
+                result[i] = mc[i].Value;
+                matchposition[i] = mc[i].Index;
+                Console.WriteLine("索引位置{0}；结果{1}；", mc[i].Index, mc[i].Value);
+            }
+        }
+    }
+}
--- a/15_8/15_8.csproj
+++ b/15_8/15_8.csproj
@@ -0,0 +1,11 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net8.0</TargetFramework>
+    <RootNamespace>_15_8</RootNamespace>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>
--- a/15_8/15_8.sln
+++ b/15_8/15_8.sln
@@ -0,0 +1,25 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.14.36623.8 d17.14
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "15_8", "15_8.csproj", "{F3D96B0F-364E-4EAB-9C50-8EABCE6F748E}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{F3D96B0F-364E-4EAB-9C50-8EABCE6F748E}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{F3D96B0F-364E-4EAB-9C50-8EABCE6F748E}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{F3D96B0F-364E-4EAB-9C50-8EABCE6F748E}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{F3D96B0F-364E-4EAB-9C50-8EABCE6F748E}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {22C79536-29FB-4BFC-BC82-AC3EFA5DF606}
+	EndGlobalSection
+EndGlobal
--- a/15_8/Program.cs
+++ b/15_8/Program.cs
@@ -0,0 +1,16 @@
+using System;
+using System.Text.RegularExpressions;
+
+namespace _15_8
+{
+    internal class Program
+    {
+        static void Main(string[] args)
+        {
+            string strIn = @"~@ How are you doing? Fine，thanks！";
+            string result = Regex.Replace(strIn, @"[^\w\. ?,]", "");
+            Console.WriteLine(strIn);
+            Console.WriteLine(result);
+        }
+    }
+}
--- a/15_9/15_9.csproj
+++ b/15_9/15_9.csproj
@@ -0,0 +1,11 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net8.0</TargetFramework>
+    <RootNamespace>_15_9</RootNamespace>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>
--- a/15_9/15_9.sln
+++ b/15_9/15_9.sln
@@ -0,0 +1,25 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.14.36623.8 d17.14
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "15_9", "15_9.csproj", "{42964642-3419-4B4C-82EE-6648B8E1AF09}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{42964642-3419-4B4C-82EE-6648B8E1AF09}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{42964642-3419-4B4C-82EE-6648B8E1AF09}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{42964642-3419-4B4C-82EE-6648B8E1AF09}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{42964642-3419-4B4C-82EE-6648B8E1AF09}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {0E8A3FC7-2195-445C-89F7-8C03A042ADC5}
+	EndGlobalSection
+EndGlobal
--- a/15_9/Program.cs
+++ b/15_9/Program.cs
@@ -0,0 +1,10 @@
+namespace _15_9
+{
+    internal class Program
+    {
+        static void Main(string[] args)
+        {
+            Console.WriteLine("Hello, World!");
+        }
+    }
+}
--- a/16/16.csproj
+++ b/16/16.csproj
@@ -0,0 +1,11 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net8.0</TargetFramework>
+    <RootNamespace>_16</RootNamespace>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>
--- a/16/16.sln
+++ b/16/16.sln
@@ -0,0 +1,25 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.14.36623.8 d17.14
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "16", "16.csproj", "{A5B25E25-EF1D-47F6-AB55-E0AC5C40E712}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{A5B25E25-EF1D-47F6-AB55-E0AC5C40E712}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{A5B25E25-EF1D-47F6-AB55-E0AC5C40E712}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{A5B25E25-EF1D-47F6-AB55-E0AC5C40E712}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{A5B25E25-EF1D-47F6-AB55-E0AC5C40E712}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {F7A0EDA2-542E-4CE2-91F6-575C0D8277BC}
+	EndGlobalSection
+EndGlobal
--- a/16/Program.cs
+++ b/16/Program.cs
@@ -0,0 +1,22 @@
+namespace _16
+{
+    internal class Program
+    {
+        private const string FILE_NAME = @"c:\temp\TestFile.txt";
+        static void Main(string[] args)
+        {
+            using (StreamReader sr = new StreamReader(FILE_NAME))
+            {
+                try
+                {
+                    String line;
+                    while ((line = sr.ReadLine()) != null)
+                    {
+                        Console.WriteLine(line);
+                    }
+                }
+                catch (Exception e) { Console.WriteLine(e.Message); }
+            }
+        }
+    }
+}
--- a/16_2/16_2.csproj
+++ b/16_2/16_2.csproj
@@ -0,0 +1,11 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net8.0</TargetFramework>
+    <RootNamespace>_16_2</RootNamespace>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>
--- a/16_2/16_2.sln
+++ b/16_2/16_2.sln
@@ -0,0 +1,25 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.14.36623.8 d17.14
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "16_2", "16_2.csproj", "{894B436F-A57A-4945-9B44-C9F2999B099D}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{894B436F-A57A-4945-9B44-C9F2999B099D}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{894B436F-A57A-4945-9B44-C9F2999B099D}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{894B436F-A57A-4945-9B44-C9F2999B099D}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{894B436F-A57A-4945-9B44-C9F2999B099D}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {D6F600F8-25B4-4E93-AF52-22E987FC78C2}
+	EndGlobalSection
+EndGlobal
--- a/16_2/Program.cs
+++ b/16_2/Program.cs
@@ -0,0 +1,33 @@
+using System;
+using System.IO;
+
+namespace _16_2
+{
+    class CopyDir
+    {
+        static public void CopyDirectory(string srcDir, string dstDir)
+        {
+            DirectoryInfo src = new DirectoryInfo(srcDir);
+            DirectoryInfo dst = new DirectoryInfo(dstDir);
+            if (!src.Exists) return;
+            if (!dst.Exists) dst.Create();
+            FileInfo[] sfs = src.GetFiles();
+            for (int i = 0; i < sfs.Length; i++) File.Copy(sfs[i].FullName, sfs[i].FullName + "\\" + sfs[i].Name, true);
+            DirectoryInfo[] srcDirs = src.GetDirectories();
+            for (int j = 0; j < srcDirs.Length; j++)
+                CopyDirectory(srcDirs[j].FullName, dst.FullName + "\\" + srcDirs[j].Name);
+        }
+        static void Main(string[] args)
+        {
+            try
+            {
+                string src = args[0];
+                string dst = args[1];
+                CopyDirectory(src, dst);
+                Console.WriteLine("\n 源目录{0}的内容已复制到目标目录{1}中", src, dst);
+            }
+            catch (Exception e) { Console.WriteLine("\n 操作失败 {0}", e.ToString()); }
+            finally { }
+        }
+    }
+}
--- a/16_3/16_3.csproj
+++ b/16_3/16_3.csproj
@@ -0,0 +1,11 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net8.0</TargetFramework>
+    <RootNamespace>_16_3</RootNamespace>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>
--- a/16_3/16_3.sln
+++ b/16_3/16_3.sln
@@ -0,0 +1,25 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.14.36623.8 d17.14
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "16_3", "16_3.csproj", "{516064BC-53EE-4754-B189-5AF7DE4BA648}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{516064BC-53EE-4754-B189-5AF7DE4BA648}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{516064BC-53EE-4754-B189-5AF7DE4BA648}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{516064BC-53EE-4754-B189-5AF7DE4BA648}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{516064BC-53EE-4754-B189-5AF7DE4BA648}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {592FA477-A757-4C0E-83CA-53B7B59DDBEF}
+	EndGlobalSection
+EndGlobal
--- a/16_3/Program.cs
+++ b/16_3/Program.cs
@@ -0,0 +1,26 @@
+using System;
+using System.IO;
+
+namespace _16_3
+{
+    class Program
+    {
+        private const string FILE_NAME = @"c:\temp\TestFile.txt";
+        static void Main(string[] args)
+        {
+            using (StreamWriter sw = new StreamWriter(FILE_NAME))
+            {
+                sw.Write("文本文件");
+                sw.Write("的写入/读取");
+                sw.WriteLine("-----------------------");
+                sw.WriteLine("写入整数{0}，或浮点数{1}", 1, 4.2);
+                bool b = false; char grade ='A'; string s = "Multiple Data Type!";
+                sw.WriteLine("写入布尔值、字符、字符串、日期：");
+                sw.WriteLine(b);
+                sw.WriteLine(grade);
+                sw.WriteLine(s);
+                sw.Write("当前日期：");sw.WriteLine(DateTime.Now);
+            }
+        }
+    }
+}
--- a/16_7/16_7.csproj
+++ b/16_7/16_7.csproj
@@ -0,0 +1,11 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net8.0</TargetFramework>
+    <RootNamespace>_16_7</RootNamespace>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>
--- a/16_7/16_7.sln
+++ b/16_7/16_7.sln
@@ -0,0 +1,25 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.14.36623.8 d17.14
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "16_7", "16_7.csproj", "{33890FA2-C6D8-4655-9C73-C57015E7EDA2}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{33890FA2-C6D8-4655-9C73-C57015E7EDA2}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{33890FA2-C6D8-4655-9C73-C57015E7EDA2}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{33890FA2-C6D8-4655-9C73-C57015E7EDA2}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{33890FA2-C6D8-4655-9C73-C57015E7EDA2}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {6B7FEDF5-3E35-4C46-886A-78630949426A}
+	EndGlobalSection
+EndGlobal
--- a/16_7/Program.cs
+++ b/16_7/Program.cs
@@ -0,0 +1,10 @@
+namespace _16_7
+{
+    internal class Program
+    {
+        static void Main(string[] args)
+        {
+            Console.WriteLine("Hello, World!");
+        }
+    }
+}
--- a/ConsoleApp7/ConsoleApp7.csproj
+++ b/ConsoleApp7/ConsoleApp7.csproj
@@ -0,0 +1,10 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>
--- a/ConsoleApp7/ConsoleApp7.sln
+++ b/ConsoleApp7/ConsoleApp7.sln
@@ -0,0 +1,25 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.14.36623.8 d17.14
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ConsoleApp7", "ConsoleApp7.csproj", "{D142C263-3F9B-4B2C-96D8-91555668D07F}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{D142C263-3F9B-4B2C-96D8-91555668D07F}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{D142C263-3F9B-4B2C-96D8-91555668D07F}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{D142C263-3F9B-4B2C-96D8-91555668D07F}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{D142C263-3F9B-4B2C-96D8-91555668D07F}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {A6F2247D-28F8-40E7-A68F-9A39C987FF1D}
+	EndGlobalSection
+EndGlobal
--- a/ConsoleApp7/Program.cs
+++ b/ConsoleApp7/Program.cs
@@ -0,0 +1,26 @@
+
+namespace ConsoleApp7
+{
+    internal class Program
+    {
+        static void Main()
+        {
+            DriveInfo[] allDrives = DriveInfo.GetDrives();
+            foreach (DriveInfo d in allDrives)
+            {
+                Console.WriteLine(d.Name);
+                Console.WriteLine(d.DriveType);
+                if (d.IsReady == true)
+                {
+                    Console.WriteLine("卷标{0}", d.VolumeLabel);
+                    Console.WriteLine("文件系统{0}", d.DriveFormat);
+                    Console.WriteLine("可用空间{0,15}bytes", d.AvailableFreeSpace);
+                    Console.WriteLine("总可用空间{0,15}bytes", d.TotalFreeSpace);
+                    Console.WriteLine("磁盘总大小{0,15}bytes", d.TotalSize);
+                }
+
+            }
+
+        }
+    }
+}
--- a/HelloWorld/App.config
+++ b/HelloWorld/App.config
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<configuration>
+    <startup> 
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.7.2" />
+    </startup>
+</configuration>
--- a/HelloWorld/Form1.Designer.cs
+++ b/HelloWorld/Form1.Designer.cs
@@ -0,0 +1,64 @@
+namespace HelloWorld
+{
+    partial class Hello_World
+    {
+        /// <summary>
+        /// 必需的设计器变量。
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// 清理所有正在使用的资源。
+        /// </summary>
+        /// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows 窗体设计器生成的代码
+
+        /// <summary>
+        /// 设计器支持所需的方法 - 不要修改
+        /// 使用代码编辑器修改此方法的内容。
+        /// </summary>
+        private void InitializeComponent()
+        {
+            this.button1 = new System.Windows.Forms.Button();
+            this.SuspendLayout();
+            // 
+            // button1
+            // 
+            this.button1.Font = new System.Drawing.Font("宋体", 48F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(134)));
+            this.button1.Location = new System.Drawing.Point(236, 156);
+            this.button1.Name = "button1";
+            this.button1.Size = new System.Drawing.Size(591, 426);
+            this.button1.TabIndex = 0;
+            this.button1.Text = "say";
+            this.button1.UseVisualStyleBackColor = true;
+            this.button1.Click += new System.EventHandler(this.button1_Click);
+            // 
+            // Hello_World
+            // 
+            this.AutoScaleDimensions = new System.Drawing.SizeF(9F, 18F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.ClientSize = new System.Drawing.Size(1054, 769);
+            this.Controls.Add(this.button1);
+            this.Cursor = System.Windows.Forms.Cursors.Cross;
+            this.Name = "Hello_World";
+            this.Text = "Hello World";
+            this.Load += new System.EventHandler(this.Form1_Load);
+            this.ResumeLayout(false);
+
+        }
+
+        #endregion
+
+        private System.Windows.Forms.Button button1;
+    }
+}
+
--- a/HelloWorld/Form1.cs
+++ b/HelloWorld/Form1.cs
@@ -0,0 +1,30 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace HelloWorld
+{
+    public partial class Hello_World : Form
+    {
+        public Hello_World()
+        {
+            InitializeComponent();
+        }
+
+        private void button1_Click(object sender, EventArgs e)
+        {
+            MessageBox.Show("Hello World");
+        }
+
+        private void Form1_Load(object sender, EventArgs e)
+        {
+
+        }
+    }
+}
--- a/HelloWorld/Form1.resx
+++ b/HelloWorld/Form1.resx
@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>
--- a/HelloWorld/HelloWorld.csproj
+++ b/HelloWorld/HelloWorld.csproj
@@ -0,0 +1,83 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProjectGuid>{E37BC2C4-B352-4A78-BD8A-3CDDF322D223}</ProjectGuid>
+    <OutputType>WinExe</OutputType>
+    <RootNamespace>HelloWorld</RootNamespace>
+    <AssemblyName>HelloWorld</AssemblyName>
+    <TargetFrameworkVersion>v4.7.2</TargetFrameworkVersion>
+    <FileAlignment>512</FileAlignment>
+    <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
+    <Deterministic>true</Deterministic>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="System" />
+    <Reference Include="System.Core" />
+    <Reference Include="System.Xml.Linq" />
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="Microsoft.CSharp" />
+    <Reference Include="System.Data" />
+    <Reference Include="System.Deployment" />
+    <Reference Include="System.Drawing" />
+    <Reference Include="System.Net.Http" />
+    <Reference Include="System.Windows.Forms" />
+    <Reference Include="System.Xml" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="Form1.cs">
+      <SubType>Form</SubType>
+    </Compile>
+    <Compile Include="Form1.Designer.cs">
+      <DependentUpon>Form1.cs</DependentUpon>
+    </Compile>
+    <Compile Include="Program.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+    <EmbeddedResource Include="Form1.resx">
+      <DependentUpon>Form1.cs</DependentUpon>
+    </EmbeddedResource>
+    <EmbeddedResource Include="Properties\Resources.resx">
+      <Generator>ResXFileCodeGenerator</Generator>
+      <LastGenOutput>Resources.Designer.cs</LastGenOutput>
+      <SubType>Designer</SubType>
+    </EmbeddedResource>
+    <Compile Include="Properties\Resources.Designer.cs">
+      <AutoGen>True</AutoGen>
+      <DependentUpon>Resources.resx</DependentUpon>
+    </Compile>
+    <None Include="Properties\Settings.settings">
+      <Generator>SettingsSingleFileGenerator</Generator>
+      <LastGenOutput>Settings.Designer.cs</LastGenOutput>
+    </None>
+    <Compile Include="Properties\Settings.Designer.cs">
+      <AutoGen>True</AutoGen>
+      <DependentUpon>Settings.settings</DependentUpon>
+      <DesignTimeSharedInput>True</DesignTimeSharedInput>
+    </Compile>
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="App.config" />
+  </ItemGroup>
+  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+</Project>
--- a/HelloWorld/HelloWorld.sln
+++ b/HelloWorld/HelloWorld.sln
@@ -0,0 +1,25 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.14.36705.20 d17.14
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "HelloWorld", "HelloWorld.csproj", "{E37BC2C4-B352-4A78-BD8A-3CDDF322D223}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{E37BC2C4-B352-4A78-BD8A-3CDDF322D223}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{E37BC2C4-B352-4A78-BD8A-3CDDF322D223}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{E37BC2C4-B352-4A78-BD8A-3CDDF322D223}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{E37BC2C4-B352-4A78-BD8A-3CDDF322D223}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {4D8B2E62-4DC9-4BD4-956F-2846C6B73BEA}
+	EndGlobalSection
+EndGlobal
--- a/HelloWorld/Program.cs
+++ b/HelloWorld/Program.cs
@@ -0,0 +1,22 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace HelloWorld
+{
+    internal static class Program
+    {
+        /// <summary>
+        /// 应用程序的主入口点。
+        /// </summary>
+        [STAThread]
+        static void Main()
+        {
+            Application.EnableVisualStyles();
+            Application.SetCompatibleTextRenderingDefault(false);
+            Application.Run(new Hello_World());
+        }
+    }
+}
--- a/HelloWorld/Properties/AssemblyInfo.cs
+++ b/HelloWorld/Properties/AssemblyInfo.cs
@@ -0,0 +1,33 @@
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+// 有关程序集的一般信息由以下
+// 控制。更改这些特性值可修改
+// 与程序集关联的信息。
+[assembly: AssemblyTitle("HelloWorld")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("HelloWorld")]
+[assembly: AssemblyCopyright("Copyright ©  2025")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// 将 ComVisible 设置为 false 会使此程序集中的类型
+//对 COM 组件不可见。如果需要从 COM 访问此程序集中的类型
+//请将此类型的 ComVisible 特性设置为 true。
+[assembly: ComVisible(false)]
+
+// 如果此项目向 COM 公开，则下列 GUID 用于类型库的 ID
+[assembly: Guid("e37bc2c4-b352-4a78-bd8a-3cddf322d223")]
+
+// 程序集的版本信息由下列四个值组成: 
+//
+//      主版本
+//      次版本
+//      生成号
+//      修订号
+//
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]
--- a/HelloWorld/Properties/Resources.Designer.cs
+++ b/HelloWorld/Properties/Resources.Designer.cs
@@ -0,0 +1,71 @@
+//------------------------------------------------------------------------------
+// <auto-generated>
+//     此代码由工具生成。
+//     运行时版本: 4.0.30319.42000
+//
+//     对此文件的更改可能导致不正确的行为，如果
+//     重新生成代码，则所做更改将丢失。
+// </auto-generated>
+//------------------------------------------------------------------------------
+
+namespace HelloWorld.Properties
+{
+
+
+    /// <summary>
+    ///   强类型资源类，用于查找本地化字符串等。
+    /// </summary>
+    // 此类是由 StronglyTypedResourceBuilder
+    // 类通过类似于 ResGen 或 Visual Studio 的工具自动生成的。
+    // 若要添加或移除成员，请编辑 .ResX 文件，然后重新运行 ResGen
+    // (以 /str 作为命令选项)，或重新生成 VS 项目。
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "4.0.0.0")]
+    [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
+    [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
+    internal class Resources
+    {
+
+        private static global::System.Resources.ResourceManager resourceMan;
+
+        private static global::System.Globalization.CultureInfo resourceCulture;
+
+        [global::System.Diagnostics.CodeAnalysis.SuppressMessageAttribute("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode")]
+        internal Resources()
+        {
+        }
+
+        /// <summary>
+        ///   返回此类使用的缓存 ResourceManager 实例。
+        /// </summary>
+        [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
+        internal static global::System.Resources.ResourceManager ResourceManager
+        {
+            get
+            {
+                if ((resourceMan == null))
+                {
+                    global::System.Resources.ResourceManager temp = new global::System.Resources.ResourceManager("HelloWorld.Properties.Resources", typeof(Resources).Assembly);
+                    resourceMan = temp;
+                }
+                return resourceMan;
+            }
+        }
+
+        /// <summary>
+        ///   重写当前线程的 CurrentUICulture 属性，对
+        ///   使用此强类型资源类的所有资源查找执行重写。
+        /// </summary>
+        [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
+        internal static global::System.Globalization.CultureInfo Culture
+        {
+            get
+            {
+                return resourceCulture;
+            }
+            set
+            {
+                resourceCulture = value;
+            }
+        }
+    }
+}
--- a/HelloWorld/Properties/Resources.resx
+++ b/HelloWorld/Properties/Resources.resx
@@ -0,0 +1,117 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>
--- a/HelloWorld/Properties/Settings.Designer.cs
+++ b/HelloWorld/Properties/Settings.Designer.cs
@@ -0,0 +1,30 @@
+//------------------------------------------------------------------------------
+// <auto-generated>
+//     This code was generated by a tool.
+//     Runtime Version:4.0.30319.42000
+//
+//     Changes to this file may cause incorrect behavior and will be lost if
+//     the code is regenerated.
+// </auto-generated>
+//------------------------------------------------------------------------------
+
+namespace HelloWorld.Properties
+{
+
+
+    [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.VisualStudio.Editors.SettingsDesigner.SettingsSingleFileGenerator", "11.0.0.0")]
+    internal sealed partial class Settings : global::System.Configuration.ApplicationSettingsBase
+    {
+
+        private static Settings defaultInstance = ((Settings)(global::System.Configuration.ApplicationSettingsBase.Synchronized(new Settings())));
+
+        public static Settings Default
+        {
+            get
+            {
+                return defaultInstance;
+            }
+        }
+    }
+}
--- a/HelloWorld/Properties/Settings.settings
+++ b/HelloWorld/Properties/Settings.settings
@@ -0,0 +1,7 @@
+<?xml version='1.0' encoding='utf-8'?>
+<SettingsFile xmlns="http://schemas.microsoft.com/VisualStudio/2004/01/settings" CurrentProfile="(Default)">
+  <Profiles>
+    <Profile Name="(Default)" />
+  </Profiles>
+  <Settings />
+</SettingsFile>
--- a/WindowsFormsApp1/App.config
+++ b/WindowsFormsApp1/App.config
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<configuration>
+    <startup> 
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.7.2" />
+    </startup>
+</configuration>
--- a/WindowsFormsApp1/Form1.Designer.cs
+++ b/WindowsFormsApp1/Form1.Designer.cs
@@ -0,0 +1,103 @@
+namespace WindowsFormsApp1
+{
+    partial class Form1
+    {
+        /// <summary>
+        /// 必需的设计器变量。
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// 清理所有正在使用的资源。
+        /// </summary>
+        /// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows 窗体设计器生成的代码
+
+        /// <summary>
+        /// 设计器支持所需的方法 - 不要修改
+        /// 使用代码编辑器修改此方法的内容。
+        /// </summary>
+        private void InitializeComponent()
+        {
+            this.label1 = new System.Windows.Forms.Label();
+            this.richTextBox1 = new System.Windows.Forms.RichTextBox();
+            this.button1 = new System.Windows.Forms.Button();
+            this.textBox1 = new System.Windows.Forms.TextBox();
+            this.SuspendLayout();
+            // 
+            // label1
+            // 
+            this.label1.AutoSize = true;
+            this.label1.Location = new System.Drawing.Point(55, 52);
+            this.label1.Name = "label1";
+            this.label1.Size = new System.Drawing.Size(44, 18);
+            this.label1.TabIndex = 0;
+            this.label1.Text = "复制";
+            // 
+            // richTextBox1
+            // 
+            this.richTextBox1.Location = new System.Drawing.Point(78, 109);
+            this.richTextBox1.Name = "richTextBox1";
+            this.richTextBox1.ReadOnly = true;
+            this.richTextBox1.Size = new System.Drawing.Size(295, 217);
+            this.richTextBox1.TabIndex = 1;
+            this.richTextBox1.Text = "";
+            this.richTextBox1.TextChanged += new System.EventHandler(this.richTextBox1_TextChanged);
+            // 
+            // button1
+            // 
+            this.button1.Location = new System.Drawing.Point(366, 364);
+            this.button1.Name = "button1";
+            this.button1.Size = new System.Drawing.Size(94, 44);
+            this.button1.TabIndex = 2;
+            this.button1.Text = "复制文字";
+            this.button1.UseVisualStyleBackColor = true;
+            this.button1.Click += new System.EventHandler(this.button1_Click);
+            // 
+            // textBox1
+            // 
+            this.textBox1.CausesValidation = false;
+            this.textBox1.Location = new System.Drawing.Point(439, 109);
+            this.textBox1.Multiline = true;
+            this.textBox1.Name = "textBox1";
+            this.textBox1.ScrollBars = System.Windows.Forms.ScrollBars.Vertical;
+            this.textBox1.Size = new System.Drawing.Size(302, 217);
+            this.textBox1.TabIndex = 3;
+            // 
+            // Form1
+            // 
+            this.AutoScaleDimensions = new System.Drawing.SizeF(9F, 18F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.ClientSize = new System.Drawing.Size(800, 450);
+            this.Controls.Add(this.textBox1);
+            this.Controls.Add(this.button1);
+            this.Controls.Add(this.richTextBox1);
+            this.Controls.Add(this.label1);
+            this.MaximizeBox = false;
+            this.MinimizeBox = false;
+            this.Name = "Form1";
+            this.Text = "Form1";
+            this.Load += new System.EventHandler(this.Form1_Load);
+            this.ResumeLayout(false);
+            this.PerformLayout();
+
+        }
+
+        #endregion
+
+        private System.Windows.Forms.Label label1;
+        private System.Windows.Forms.RichTextBox richTextBox1;
+        private System.Windows.Forms.Button button1;
+        private System.Windows.Forms.TextBox textBox1;
+    }
+}
+
--- a/WindowsFormsApp1/Form1.cs
+++ b/WindowsFormsApp1/Form1.cs
@@ -0,0 +1,40 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace WindowsFormsApp1
+{
+    public partial class Form1 : Form
+    {
+        public Form1()
+        {
+            InitializeComponent();
+        }
+
+        private void richTextBox1_TextChanged(object sender, EventArgs e)
+        {
+
+        }
+
+        private void Form1_Load(object sender, EventArgs e)
+        {
+            richTextBox1.Text = @"TextBox控件用于输入文本信息" +
+                @"此控件具有windows文本框控件所没有的" +
+                @"附加功能，包括多行编辑和密码字符屏蔽";
+            textBox1.Text = "";
+        }
+
+        private void button1_Click(object sender, EventArgs e)
+        {
+            textBox1.Text += richTextBox1.SelectedText;
+            richTextBox1.SelectionFont = new Font("Kaiti", 24, FontStyle.Bold);
+            richTextBox1.SelectionColor = System.Drawing.Color.Red;
+        }
+    }
+}
--- a/WindowsFormsApp1/Form1.resx
+++ b/WindowsFormsApp1/Form1.resx
@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>
--- a/WindowsFormsApp1/Program.cs
+++ b/WindowsFormsApp1/Program.cs
@@ -0,0 +1,22 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace WindowsFormsApp1
+{
+    internal static class Program
+    {
+        /// <summary>
+        /// 应用程序的主入口点。
+        /// </summary>
+        [STAThread]
+        static void Main()
+        {
+            Application.EnableVisualStyles();
+            Application.SetCompatibleTextRenderingDefault(false);
+            Application.Run(new Form1());
+        }
+    }
+}
--- a/WindowsFormsApp1/Properties/AssemblyInfo.cs
+++ b/WindowsFormsApp1/Properties/AssemblyInfo.cs
@@ -0,0 +1,33 @@
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+// 有关程序集的一般信息由以下
+// 控制。更改这些特性值可修改
+// 与程序集关联的信息。
+[assembly: AssemblyTitle("WindowsFormsApp1")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("WindowsFormsApp1")]
+[assembly: AssemblyCopyright("Copyright ©  2025")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// 将 ComVisible 设置为 false 会使此程序集中的类型
+//对 COM 组件不可见。如果需要从 COM 访问此程序集中的类型
+//请将此类型的 ComVisible 特性设置为 true。
+[assembly: ComVisible(false)]
+
+// 如果此项目向 COM 公开，则下列 GUID 用于类型库的 ID
+[assembly: Guid("96efcf33-f88b-4af9-a162-8b3e87c946ec")]
+
+// 程序集的版本信息由下列四个值组成: 
+//
+//      主版本
+//      次版本
+//      生成号
+//      修订号
+//
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]
--- a/WindowsFormsApp1/Properties/Resources.Designer.cs
+++ b/WindowsFormsApp1/Properties/Resources.Designer.cs
@@ -0,0 +1,71 @@
+//------------------------------------------------------------------------------
+// <auto-generated>
+//     此代码由工具生成。
+//     运行时版本: 4.0.30319.42000
+//
+//     对此文件的更改可能导致不正确的行为，如果
+//     重新生成代码，则所做更改将丢失。
+// </auto-generated>
+//------------------------------------------------------------------------------
+
+namespace WindowsFormsApp1.Properties
+{
+
+
+    /// <summary>
+    ///   强类型资源类，用于查找本地化字符串等。
+    /// </summary>
+    // 此类是由 StronglyTypedResourceBuilder
+    // 类通过类似于 ResGen 或 Visual Studio 的工具自动生成的。
+    // 若要添加或移除成员，请编辑 .ResX 文件，然后重新运行 ResGen
+    // (以 /str 作为命令选项)，或重新生成 VS 项目。
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "4.0.0.0")]
+    [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
+    [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
+    internal class Resources
+    {
+
+        private static global::System.Resources.ResourceManager resourceMan;
+
+        private static global::System.Globalization.CultureInfo resourceCulture;
+
+        [global::System.Diagnostics.CodeAnalysis.SuppressMessageAttribute("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode")]
+        internal Resources()
+        {
+        }
+
+        /// <summary>
+        ///   返回此类使用的缓存 ResourceManager 实例。
+        /// </summary>
+        [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
+        internal static global::System.Resources.ResourceManager ResourceManager
+        {
+            get
+            {
+                if ((resourceMan == null))
+                {
+                    global::System.Resources.ResourceManager temp = new global::System.Resources.ResourceManager("WindowsFormsApp1.Properties.Resources", typeof(Resources).Assembly);
+                    resourceMan = temp;
+                }
+                return resourceMan;
+            }
+        }
+
+        /// <summary>
+        ///   重写当前线程的 CurrentUICulture 属性，对
+        ///   使用此强类型资源类的所有资源查找执行重写。
+        /// </summary>
+        [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
+        internal static global::System.Globalization.CultureInfo Culture
+        {
+            get
+            {
+                return resourceCulture;
+            }
+            set
+            {
+                resourceCulture = value;
+            }
+        }
+    }
+}
--- a/WindowsFormsApp1/Properties/Resources.resx
+++ b/WindowsFormsApp1/Properties/Resources.resx
@@ -0,0 +1,117 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>
--- a/WindowsFormsApp1/Properties/Settings.Designer.cs
+++ b/WindowsFormsApp1/Properties/Settings.Designer.cs
@@ -0,0 +1,30 @@
+//------------------------------------------------------------------------------
+// <auto-generated>
+//     This code was generated by a tool.
+//     Runtime Version:4.0.30319.42000
+//
+//     Changes to this file may cause incorrect behavior and will be lost if
+//     the code is regenerated.
+// </auto-generated>
+//------------------------------------------------------------------------------
+
+namespace WindowsFormsApp1.Properties
+{
+
+
+    [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.VisualStudio.Editors.SettingsDesigner.SettingsSingleFileGenerator", "11.0.0.0")]
+    internal sealed partial class Settings : global::System.Configuration.ApplicationSettingsBase
+    {
+
+        private static Settings defaultInstance = ((Settings)(global::System.Configuration.ApplicationSettingsBase.Synchronized(new Settings())));
+
+        public static Settings Default
+        {
+            get
+            {
+                return defaultInstance;
+            }
+        }
+    }
+}
--- a/WindowsFormsApp1/Properties/Settings.settings
+++ b/WindowsFormsApp1/Properties/Settings.settings
@@ -0,0 +1,7 @@
+<?xml version='1.0' encoding='utf-8'?>
+<SettingsFile xmlns="http://schemas.microsoft.com/VisualStudio/2004/01/settings" CurrentProfile="(Default)">
+  <Profiles>
+    <Profile Name="(Default)" />
+  </Profiles>
+  <Settings />
+</SettingsFile>
--- a/WindowsFormsApp1/WindowsFormsApp1.csproj
+++ b/WindowsFormsApp1/WindowsFormsApp1.csproj
@@ -0,0 +1,124 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProjectGuid>{96EFCF33-F88B-4AF9-A162-8B3E87C946EC}</ProjectGuid>
+    <OutputType>WinExe</OutputType>
+    <RootNamespace>WindowsFormsApp1</RootNamespace>
+    <AssemblyName>WindowsFormsApp1</AssemblyName>
+    <TargetFrameworkVersion>v4.7.2</TargetFrameworkVersion>
+    <FileAlignment>512</FileAlignment>
+    <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
+    <Deterministic>true</Deterministic>
+    <IsWebBootstrapper>false</IsWebBootstrapper>
+    <PublishUrl>C:\Users\BI\Desktop\</PublishUrl>
+    <Install>true</Install>
+    <InstallFrom>Disk</InstallFrom>
+    <UpdateEnabled>false</UpdateEnabled>
+    <UpdateMode>Foreground</UpdateMode>
+    <UpdateInterval>7</UpdateInterval>
+    <UpdateIntervalUnits>Days</UpdateIntervalUnits>
+    <UpdatePeriodically>false</UpdatePeriodically>
+    <UpdateRequired>false</UpdateRequired>
+    <MapFileExtensions>true</MapFileExtensions>
+    <ApplicationRevision>1</ApplicationRevision>
+    <ApplicationVersion>1.0.0.%2a</ApplicationVersion>
+    <UseApplicationTrust>false</UseApplicationTrust>
+    <PublishWizardCompleted>true</PublishWizardCompleted>
+    <BootstrapperEnabled>true</BootstrapperEnabled>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup>
+    <ManifestCertificateThumbprint>5FE4E351DDEE03F11108E06DB0BCCC3691E5FDCD</ManifestCertificateThumbprint>
+  </PropertyGroup>
+  <PropertyGroup>
+    <ManifestKeyFile>WindowsFormsApp1_TemporaryKey.pfx</ManifestKeyFile>
+  </PropertyGroup>
+  <PropertyGroup>
+    <GenerateManifests>true</GenerateManifests>
+  </PropertyGroup>
+  <PropertyGroup>
+    <SignManifests>true</SignManifests>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="System" />
+    <Reference Include="System.Core" />
+    <Reference Include="System.Xml.Linq" />
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="Microsoft.CSharp" />
+    <Reference Include="System.Data" />
+    <Reference Include="System.Deployment" />
+    <Reference Include="System.Drawing" />
+    <Reference Include="System.Net.Http" />
+    <Reference Include="System.Windows.Forms" />
+    <Reference Include="System.Xml" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="Form1.cs">
+      <SubType>Form</SubType>
+    </Compile>
+    <Compile Include="Form1.Designer.cs">
+      <DependentUpon>Form1.cs</DependentUpon>
+    </Compile>
+    <Compile Include="Program.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+    <EmbeddedResource Include="Form1.resx">
+      <DependentUpon>Form1.cs</DependentUpon>
+    </EmbeddedResource>
+    <EmbeddedResource Include="Properties\Resources.resx">
+      <Generator>ResXFileCodeGenerator</Generator>
+      <LastGenOutput>Resources.Designer.cs</LastGenOutput>
+      <SubType>Designer</SubType>
+    </EmbeddedResource>
+    <Compile Include="Properties\Resources.Designer.cs">
+      <AutoGen>True</AutoGen>
+      <DependentUpon>Resources.resx</DependentUpon>
+    </Compile>
+    <None Include="Properties\Settings.settings">
+      <Generator>SettingsSingleFileGenerator</Generator>
+      <LastGenOutput>Settings.Designer.cs</LastGenOutput>
+    </None>
+    <Compile Include="Properties\Settings.Designer.cs">
+      <AutoGen>True</AutoGen>
+      <DependentUpon>Settings.settings</DependentUpon>
+      <DesignTimeSharedInput>True</DesignTimeSharedInput>
+    </Compile>
+    <None Include="WindowsFormsApp1_TemporaryKey.pfx" />
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="App.config" />
+  </ItemGroup>
+  <ItemGroup>
+    <BootstrapperPackage Include=".NETFramework,Version=v4.7.2">
+      <Visible>False</Visible>
+      <ProductName>Microsoft .NET Framework 4.7.2 %28x86 和 x64%29</ProductName>
+      <Install>true</Install>
+    </BootstrapperPackage>
+    <BootstrapperPackage Include="Microsoft.Net.Framework.3.5.SP1">
+      <Visible>False</Visible>
+      <ProductName>.NET Framework 3.5 SP1</ProductName>
+      <Install>false</Install>
+    </BootstrapperPackage>
+  </ItemGroup>
+  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+</Project>
--- a/WindowsFormsApp1/WindowsFormsApp1.sln
+++ b/WindowsFormsApp1/WindowsFormsApp1.sln
@@ -0,0 +1,25 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.14.36705.20 d17.14
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "WindowsFormsApp1", "WindowsFormsApp1.csproj", "{96EFCF33-F88B-4AF9-A162-8B3E87C946EC}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{96EFCF33-F88B-4AF9-A162-8B3E87C946EC}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{96EFCF33-F88B-4AF9-A162-8B3E87C946EC}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{96EFCF33-F88B-4AF9-A162-8B3E87C946EC}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{96EFCF33-F88B-4AF9-A162-8B3E87C946EC}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {BB850310-348D-44FF-AB13-148BBCDD72FA}
+	EndGlobalSection
+EndGlobal
--- a/WindowsFormsApp1/WindowsFormsApp1_TemporaryKey.pfx
+++ b/WindowsFormsApp1/WindowsFormsApp1_TemporaryKey.pfx
--- a/WindowsFormsApp2/App.config
+++ b/WindowsFormsApp2/App.config
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<configuration>
+    <startup> 
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.7.2" />
+    </startup>
+</configuration>
--- a/WindowsFormsApp2/Form1.Designer.cs
+++ b/WindowsFormsApp2/Form1.Designer.cs
@@ -0,0 +1,242 @@
+namespace WindowsFormsApp2
+{
+    partial class Diaocha
+    {
+        /// <summary>
+        /// 必需的设计器变量。
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// 清理所有正在使用的资源。
+        /// </summary>
+        /// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows 窗体设计器生成的代码
+
+        /// <summary>
+        /// 设计器支持所需的方法 - 不要修改
+        /// 使用代码编辑器修改此方法的内容。
+        /// </summary>
+        private void InitializeComponent()
+        {
+            this.label1 = new System.Windows.Forms.Label();
+            this.Name = new System.Windows.Forms.TextBox();
+            this.groupBox1 = new System.Windows.Forms.GroupBox();
+            this.radioButton2 = new System.Windows.Forms.RadioButton();
+            this.radioButton1 = new System.Windows.Forms.RadioButton();
+            this.groupBox2 = new System.Windows.Forms.GroupBox();
+            this.checkBox4 = new System.Windows.Forms.CheckBox();
+            this.checkBox3 = new System.Windows.Forms.CheckBox();
+            this.checkBox2 = new System.Windows.Forms.CheckBox();
+            this.checkBox1 = new System.Windows.Forms.CheckBox();
+            this.button1 = new System.Windows.Forms.Button();
+            this.label2 = new System.Windows.Forms.Label();
+            this.label3 = new System.Windows.Forms.Label();
+            this.label4 = new System.Windows.Forms.Label();
+            this.Message = new System.Windows.Forms.Label();
+            this.groupBox1.SuspendLayout();
+            this.groupBox2.SuspendLayout();
+            this.SuspendLayout();
+            // 
+            // label1
+            // 
+            this.label1.AutoSize = true;
+            this.label1.Font = new System.Drawing.Font("宋体", 14F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(134)));
+            this.label1.Location = new System.Drawing.Point(163, 39);
+            this.label1.Name = "label1";
+            this.label1.Size = new System.Drawing.Size(180, 28);
+            this.label1.TabIndex = 0;
+            this.label1.Text = "个人信息调查";
+            // 
+            // Name
+            // 
+            this.Name.Location = new System.Drawing.Point(150, 95);
+            this.Name.Name = "Name";
+            this.Name.Size = new System.Drawing.Size(238, 28);
+            this.Name.TabIndex = 1;
+            // 
+            // groupBox1
+            // 
+            this.groupBox1.Controls.Add(this.radioButton2);
+            this.groupBox1.Controls.Add(this.radioButton1);
+            this.groupBox1.Location = new System.Drawing.Point(150, 163);
+            this.groupBox1.Name = "groupBox1";
+            this.groupBox1.Size = new System.Drawing.Size(238, 50);
+            this.groupBox1.TabIndex = 2;
+            this.groupBox1.TabStop = false;
+            // 
+            // radioButton2
+            // 
+            this.radioButton2.AutoSize = true;
+            this.radioButton2.Location = new System.Drawing.Point(125, 14);
+            this.radioButton2.Name = "radioButton2";
+            this.radioButton2.Size = new System.Drawing.Size(51, 22);
+            this.radioButton2.TabIndex = 1;
+            this.radioButton2.TabStop = true;
+            this.radioButton2.Text = "女";
+            this.radioButton2.UseVisualStyleBackColor = true;
+            // 
+            // radioButton1
+            // 
+            this.radioButton1.AutoSize = true;
+            this.radioButton1.Location = new System.Drawing.Point(18, 14);
+            this.radioButton1.Name = "radioButton1";
+            this.radioButton1.Size = new System.Drawing.Size(51, 22);
+            this.radioButton1.TabIndex = 0;
+            this.radioButton1.TabStop = true;
+            this.radioButton1.Text = "男";
+            this.radioButton1.UseVisualStyleBackColor = true;
+            // 
+            // groupBox2
+            // 
+            this.groupBox2.Controls.Add(this.checkBox4);
+            this.groupBox2.Controls.Add(this.checkBox3);
+            this.groupBox2.Controls.Add(this.checkBox2);
+            this.groupBox2.Controls.Add(this.checkBox1);
+            this.groupBox2.Location = new System.Drawing.Point(150, 259);
+            this.groupBox2.Name = "groupBox2";
+            this.groupBox2.Size = new System.Drawing.Size(238, 100);
+            this.groupBox2.TabIndex = 3;
+            this.groupBox2.TabStop = false;
+            // 
+            // checkBox4
+            // 
+            this.checkBox4.AutoSize = true;
+            this.checkBox4.Location = new System.Drawing.Point(125, 65);
+            this.checkBox4.Name = "checkBox4";
+            this.checkBox4.Size = new System.Drawing.Size(70, 22);
+            this.checkBox4.TabIndex = 3;
+            this.checkBox4.Text = "运动";
+            this.checkBox4.UseVisualStyleBackColor = true;
+            // 
+            // checkBox3
+            // 
+            this.checkBox3.AutoSize = true;
+            this.checkBox3.Location = new System.Drawing.Point(18, 66);
+            this.checkBox3.Name = "checkBox3";
+            this.checkBox3.Size = new System.Drawing.Size(70, 22);
+            this.checkBox3.TabIndex = 2;
+            this.checkBox3.Text = "阅读";
+            this.checkBox3.UseVisualStyleBackColor = true;
+            // 
+            // checkBox2
+            // 
+            this.checkBox2.AutoSize = true;
+            this.checkBox2.Location = new System.Drawing.Point(125, 27);
+            this.checkBox2.Name = "checkBox2";
+            this.checkBox2.Size = new System.Drawing.Size(70, 22);
+            this.checkBox2.TabIndex = 1;
+            this.checkBox2.Text = "旅游";
+            this.checkBox2.UseVisualStyleBackColor = true;
+            // 
+            // checkBox1
+            // 
+            this.checkBox1.AutoSize = true;
+            this.checkBox1.Location = new System.Drawing.Point(18, 28);
+            this.checkBox1.Name = "checkBox1";
+            this.checkBox1.Size = new System.Drawing.Size(70, 22);
+            this.checkBox1.TabIndex = 0;
+            this.checkBox1.Text = "音乐";
+            this.checkBox1.UseVisualStyleBackColor = true;
+            // 
+            // button1
+            // 
+            this.button1.Location = new System.Drawing.Point(198, 388);
+            this.button1.Name = "button1";
+            this.button1.Size = new System.Drawing.Size(75, 29);
+            this.button1.TabIndex = 4;
+            this.button1.Text = "提交";
+            this.button1.UseVisualStyleBackColor = true;
+            this.button1.Click += new System.EventHandler(this.button1_Click);
+            // 
+            // label2
+            // 
+            this.label2.AutoSize = true;
+            this.label2.Location = new System.Drawing.Point(61, 98);
+            this.label2.Name = "label2";
+            this.label2.Size = new System.Drawing.Size(44, 18);
+            this.label2.TabIndex = 5;
+            this.label2.Text = "姓名";
+            this.label2.Click += new System.EventHandler(this.label2_Click);
+            // 
+            // label3
+            // 
+            this.label3.AutoSize = true;
+            this.label3.Location = new System.Drawing.Point(64, 176);
+            this.label3.Name = "label3";
+            this.label3.Size = new System.Drawing.Size(44, 18);
+            this.label3.TabIndex = 6;
+            this.label3.Text = "性别";
+            // 
+            // label4
+            // 
+            this.label4.AutoSize = true;
+            this.label4.Location = new System.Drawing.Point(64, 268);
+            this.label4.Name = "label4";
+            this.label4.Size = new System.Drawing.Size(44, 18);
+            this.label4.TabIndex = 7;
+            this.label4.Text = "爱好";
+            // 
+            // Message
+            // 
+            this.Message.AutoSize = true;
+            this.Message.Location = new System.Drawing.Point(96, 428);
+            this.Message.Name = "Message";
+            this.Message.Size = new System.Drawing.Size(62, 18);
+            this.Message.TabIndex = 8;
+            this.Message.Text = "label5";
+            // 
+            // Diaocha
+            // 
+            this.AutoScaleDimensions = new System.Drawing.SizeF(9F, 18F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.ClientSize = new System.Drawing.Size(460, 523);
+            this.Controls.Add(this.Message);
+            this.Controls.Add(this.label4);
+            this.Controls.Add(this.label3);
+            this.Controls.Add(this.label2);
+            this.Controls.Add(this.button1);
+            this.Controls.Add(this.groupBox2);
+            this.Controls.Add(this.groupBox1);
+            this.Controls.Add(this.Name);
+            this.Controls.Add(this.label1);
+            this.Name = "Diaocha";
+            this.Text = "调查";
+            this.groupBox1.ResumeLayout(false);
+            this.groupBox1.PerformLayout();
+            this.groupBox2.ResumeLayout(false);
+            this.groupBox2.PerformLayout();
+            this.ResumeLayout(false);
+            this.PerformLayout();
+
+        }
+
+        #endregion
+
+        private System.Windows.Forms.Label label1;
+        private System.Windows.Forms.TextBox Name;
+        private System.Windows.Forms.GroupBox groupBox1;
+        private System.Windows.Forms.GroupBox groupBox2;
+        private System.Windows.Forms.Button button1;
+        private System.Windows.Forms.Label label2;
+        private System.Windows.Forms.RadioButton radioButton2;
+        private System.Windows.Forms.RadioButton radioButton1;
+        private System.Windows.Forms.CheckBox checkBox4;
+        private System.Windows.Forms.CheckBox checkBox3;
+        private System.Windows.Forms.CheckBox checkBox2;
+        private System.Windows.Forms.CheckBox checkBox1;
+        private System.Windows.Forms.Label label3;
+        private System.Windows.Forms.Label label4;
+        private System.Windows.Forms.Label Message;
+    }
+}
+
--- a/WindowsFormsApp2/Form1.cs
+++ b/WindowsFormsApp2/Form1.cs
@@ -0,0 +1,39 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace WindowsFormsApp2
+{
+    public partial class Diaocha : Form
+    {
+        public Diaocha()
+        {
+            InitializeComponent();
+        }
+
+        private void label2_Click(object sender, EventArgs e)
+        {
+
+        }
+
+        private void button1_Click(object sender, EventArgs e)
+        {
+            Message.Text = Name + "您好！";
+            if (radioButton1.Checked) Message.Text += "\n 您的性别是：" + radioButton1.Text;
+            else if (radioButton2.Checked) Message.Text += "\n 您的性别是：" + radioButton2.Text;
+            Message.Text += "\n 您的爱好是：";
+            if (checkBox1.Checked) Message.Text += checkBox1.Text + "";
+            if (checkBox2.Checked) Message.Text += checkBox2.Text + "";
+            if (checkBox3.Checked) Message.Text += checkBox3.Text + "";
+            if (checkBox4.Checked) Message.Text += checkBox4.Text + "";
+            if (!checkBox1.Checked && !checkBox2.Checked && !checkBox3.Checked && !checkBox4.Checked)
+                Message.Text += "您居然没有兴趣爱好！";
+        }
+    }
+}
--- a/WindowsFormsApp2/Form1.resx
+++ b/WindowsFormsApp2/Form1.resx
@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>
--- a/WindowsFormsApp2/Program.cs
+++ b/WindowsFormsApp2/Program.cs
@@ -0,0 +1,22 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace WindowsFormsApp2
+{
+    internal static class Program
+    {
+        /// <summary>
+        /// 应用程序的主入口点。
+        /// </summary>
+        [STAThread]
+        static void Main()
+        {
+            Application.EnableVisualStyles();
+            Application.SetCompatibleTextRenderingDefault(false);
+            Application.Run(new Diaocha());
+        }
+    }
+}
--- a/WindowsFormsApp2/Properties/AssemblyInfo.cs
+++ b/WindowsFormsApp2/Properties/AssemblyInfo.cs
@@ -0,0 +1,33 @@
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+// 有关程序集的一般信息由以下
+// 控制。更改这些特性值可修改
+// 与程序集关联的信息。
+[assembly: AssemblyTitle("WindowsFormsApp2")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("WindowsFormsApp2")]
+[assembly: AssemblyCopyright("Copyright ©  2025")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// 将 ComVisible 设置为 false 会使此程序集中的类型
+//对 COM 组件不可见。如果需要从 COM 访问此程序集中的类型
+//请将此类型的 ComVisible 特性设置为 true。
+[assembly: ComVisible(false)]
+
+// 如果此项目向 COM 公开，则下列 GUID 用于类型库的 ID
+[assembly: Guid("da844edf-3c52-4daf-9cc5-4fbb4bc3d243")]
+
+// 程序集的版本信息由下列四个值组成: 
+//
+//      主版本
+//      次版本
+//      生成号
+//      修订号
+//
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]
--- a/WindowsFormsApp2/Properties/Resources.Designer.cs
+++ b/WindowsFormsApp2/Properties/Resources.Designer.cs
@@ -0,0 +1,71 @@
+//------------------------------------------------------------------------------
+// <auto-generated>
+//     此代码由工具生成。
+//     运行时版本: 4.0.30319.42000
+//
+//     对此文件的更改可能导致不正确的行为，如果
+//     重新生成代码，则所做更改将丢失。
+// </auto-generated>
+//------------------------------------------------------------------------------
+
+namespace WindowsFormsApp2.Properties
+{
+
+
+    /// <summary>
+    ///   强类型资源类，用于查找本地化字符串等。
+    /// </summary>
+    // 此类是由 StronglyTypedResourceBuilder
+    // 类通过类似于 ResGen 或 Visual Studio 的工具自动生成的。
+    // 若要添加或移除成员，请编辑 .ResX 文件，然后重新运行 ResGen
+    // (以 /str 作为命令选项)，或重新生成 VS 项目。
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "4.0.0.0")]
+    [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
+    [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
+    internal class Resources
+    {
+
+        private static global::System.Resources.ResourceManager resourceMan;
+
+        private static global::System.Globalization.CultureInfo resourceCulture;
+
+        [global::System.Diagnostics.CodeAnalysis.SuppressMessageAttribute("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode")]
+        internal Resources()
+        {
+        }
+
+        /// <summary>
+        ///   返回此类使用的缓存 ResourceManager 实例。
+        /// </summary>
+        [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
+        internal static global::System.Resources.ResourceManager ResourceManager
+        {
+            get
+            {
+                if ((resourceMan == null))
+                {
+                    global::System.Resources.ResourceManager temp = new global::System.Resources.ResourceManager("WindowsFormsApp2.Properties.Resources", typeof(Resources).Assembly);
+                    resourceMan = temp;
+                }
+                return resourceMan;
+            }
+        }
+
+        /// <summary>
+        ///   重写当前线程的 CurrentUICulture 属性，对
+        ///   使用此强类型资源类的所有资源查找执行重写。
+        /// </summary>
+        [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
+        internal static global::System.Globalization.CultureInfo Culture
+        {
+            get
+            {
+                return resourceCulture;
+            }
+            set
+            {
+                resourceCulture = value;
+            }
+        }
+    }
+}
--- a/WindowsFormsApp2/Properties/Resources.resx
+++ b/WindowsFormsApp2/Properties/Resources.resx
@@ -0,0 +1,117 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>
--- a/WindowsFormsApp2/Properties/Settings.Designer.cs
+++ b/WindowsFormsApp2/Properties/Settings.Designer.cs
@@ -0,0 +1,30 @@
+//------------------------------------------------------------------------------
+// <auto-generated>
+//     This code was generated by a tool.
+//     Runtime Version:4.0.30319.42000
+//
+//     Changes to this file may cause incorrect behavior and will be lost if
+//     the code is regenerated.
+// </auto-generated>
+//------------------------------------------------------------------------------
+
+namespace WindowsFormsApp2.Properties
+{
+
+
+    [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.VisualStudio.Editors.SettingsDesigner.SettingsSingleFileGenerator", "11.0.0.0")]
+    internal sealed partial class Settings : global::System.Configuration.ApplicationSettingsBase
+    {
+
+        private static Settings defaultInstance = ((Settings)(global::System.Configuration.ApplicationSettingsBase.Synchronized(new Settings())));
+
+        public static Settings Default
+        {
+            get
+            {
+                return defaultInstance;
+            }
+        }
+    }
+}
--- a/WindowsFormsApp2/Properties/Settings.settings
+++ b/WindowsFormsApp2/Properties/Settings.settings
@@ -0,0 +1,7 @@
+<?xml version='1.0' encoding='utf-8'?>
+<SettingsFile xmlns="http://schemas.microsoft.com/VisualStudio/2004/01/settings" CurrentProfile="(Default)">
+  <Profiles>
+    <Profile Name="(Default)" />
+  </Profiles>
+  <Settings />
+</SettingsFile>
--- a/WindowsFormsApp2/WindowsFormsApp2.csproj
+++ b/WindowsFormsApp2/WindowsFormsApp2.csproj
@@ -0,0 +1,83 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProjectGuid>{DA844EDF-3C52-4DAF-9CC5-4FBB4BC3D243}</ProjectGuid>
+    <OutputType>WinExe</OutputType>
+    <RootNamespace>WindowsFormsApp2</RootNamespace>
+    <AssemblyName>WindowsFormsApp2</AssemblyName>
+    <TargetFrameworkVersion>v4.7.2</TargetFrameworkVersion>
+    <FileAlignment>512</FileAlignment>
+    <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
+    <Deterministic>true</Deterministic>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="System" />
+    <Reference Include="System.Core" />
+    <Reference Include="System.Xml.Linq" />
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="Microsoft.CSharp" />
+    <Reference Include="System.Data" />
+    <Reference Include="System.Deployment" />
+    <Reference Include="System.Drawing" />
+    <Reference Include="System.Net.Http" />
+    <Reference Include="System.Windows.Forms" />
+    <Reference Include="System.Xml" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="Form1.cs">
+      <SubType>Form</SubType>
+    </Compile>
+    <Compile Include="Form1.Designer.cs">
+      <DependentUpon>Form1.cs</DependentUpon>
+    </Compile>
+    <Compile Include="Program.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+    <EmbeddedResource Include="Form1.resx">
+      <DependentUpon>Form1.cs</DependentUpon>
+    </EmbeddedResource>
+    <EmbeddedResource Include="Properties\Resources.resx">
+      <Generator>ResXFileCodeGenerator</Generator>
+      <LastGenOutput>Resources.Designer.cs</LastGenOutput>
+      <SubType>Designer</SubType>
+    </EmbeddedResource>
+    <Compile Include="Properties\Resources.Designer.cs">
+      <AutoGen>True</AutoGen>
+      <DependentUpon>Resources.resx</DependentUpon>
+    </Compile>
+    <None Include="Properties\Settings.settings">
+      <Generator>SettingsSingleFileGenerator</Generator>
+      <LastGenOutput>Settings.Designer.cs</LastGenOutput>
+    </None>
+    <Compile Include="Properties\Settings.Designer.cs">
+      <AutoGen>True</AutoGen>
+      <DependentUpon>Settings.settings</DependentUpon>
+      <DesignTimeSharedInput>True</DesignTimeSharedInput>
+    </Compile>
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="App.config" />
+  </ItemGroup>
+  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+</Project>
--- a/WindowsFormsApp2/WindowsFormsApp2.sln
+++ b/WindowsFormsApp2/WindowsFormsApp2.sln
@@ -0,0 +1,25 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.14.36705.20 d17.14
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "WindowsFormsApp2", "WindowsFormsApp2.csproj", "{DA844EDF-3C52-4DAF-9CC5-4FBB4BC3D243}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{DA844EDF-3C52-4DAF-9CC5-4FBB4BC3D243}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{DA844EDF-3C52-4DAF-9CC5-4FBB4BC3D243}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{DA844EDF-3C52-4DAF-9CC5-4FBB4BC3D243}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{DA844EDF-3C52-4DAF-9CC5-4FBB4BC3D243}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {D29C43C0-ABD6-4F3C-B8A1-4FB512380B60}
+	EndGlobalSection
+EndGlobal
--- a/cs4/CPP5/CPP5.cpp
+++ b/cs4/CPP5/CPP5.cpp
@@ -1,20 +1,89 @@
-// CPP5.cpp : 此文件包含 "main" 函数。程序执行将在此处开始并结束。
-//
+#include<stdio.h>
+#include<stdlib.h>
+#include<time.h>

-#include <iostream>
+typedef struct Node
+{
+	int data;
+	Node* next;
+} Node;
+
+// 链式基数排序
+Node* radixSort(Node* head)
+{
+	if (head == NULL) return NULL;
+	int max = head->data;
+	Node* current = head;
+	while (current != NULL)
+	{
+		if (current->data > max)  max = current->data;
+		current = current->next;
+	}
+	// 基数排序
+	for (int exp = 1; max / exp > 0; exp *= 10)
+	{
+		Node* buckets[10] = { NULL };
+		Node* tails[10] = { NULL };
+		current = head;
+		while (current != NULL)
+		{
+			Node* next = current->next; // 保存下一个节点
+			current->next = NULL;       // 断开，防止形成环或错连
+
+			int digit = (current->data / exp) % 10;
+			if (buckets[digit] == NULL)
+			{
+				buckets[digit] = current;
+				tails[digit] = current;
+			}
+			else
+			{
+				tails[digit]->next = current;
+				tails[digit] = current;
+			}
+			current = next;
+		}
+		Node* newHead = NULL;
+		Node* newTail = NULL;
+		for (int i = 0; i < 10; i++)
+		{
+			if (buckets[i] != NULL)
+			{
+				if (newHead == NULL)
+				{
+					newHead = buckets[i];
+					newTail = tails[i];
+				}
+				else
+				{
+					newTail->next = buckets[i];
+					newTail = tails[i];
+				}
+			}
+		}
+		if (newTail != NULL)
+			newTail->next = NULL;
+		head = newHead;
+	}
+	return head;
+}

 int main()
 {
-    std::cout << "Hello World!\n";
+	srand((unsigned int)time(NULL));
+	Node* head = NULL;
+	for (int i = 0; i < 100000; i++)
+	{
+		Node* newNode = (Node*)malloc(sizeof(Node));
+		newNode->data = rand() % 100;
+		newNode->next = head;
+		head = newNode;
+	}
+	printf("链表已创建！\n");
+	double clock1 = clock();
+	head = radixSort(head);
+	double clock2 = clock();
+	printf("排序完成:\n");
+	printf("排序时间: %f 秒\n", (double)(clock2 - clock1) / CLOCKS_PER_SEC);
+	return 0;
 }
-
-// 运行程序: Ctrl + F5 或调试 >“开始执行(不调试)”菜单
-// 调试程序: F5 或调试 >“开始调试”菜单
-
-// 入门使用技巧: 
-//   1. 使用解决方案资源管理器窗口添加/管理文件
-//   2. 使用团队资源管理器窗口连接到源代码管理
-//   3. 使用输出窗口查看生成输出和其他消息
-//   4. 使用错误列表窗口查看错误
-//   5. 转到“项目”>“添加新项”以创建新的代码文件，或转到“项目”>“添加现有项”以将现有代码文件添加到项目
-//   6. 将来，若要再次打开此项目，请转到“文件”>“打开”>“项目”并选择 .sln 文件
--- a/cs4/CPP5/作业5.cpp
+++ b/cs4/CPP5/作业5.cpp
@@ -0,0 +1,89 @@
+#include<stdio.h>
+#include<stdlib.h>
+#include<time.h>
+
+typedef struct Node
+{
+	int data;
+	Node* next;
+} Node;
+
+// 链式基数排序
+Node* radixSort(Node* head)
+{
+	if (head == NULL) return NULL;
+	int max = head->data;
+	Node* current = head;
+	while (current != NULL)
+	{
+		if (current->data > max)  max = current->data;
+		current = current->next;
+	}
+	// 基数排序
+	for (int exp = 1; max / exp > 0; exp *= 10)
+	{
+		Node* buckets[10] = { NULL };
+		Node* tails[10] = { NULL };
+		current = head;
+		while (current != NULL)
+		{
+			Node* next = current->next; // 保存下一个节点
+			current->next = NULL;       // 断开，防止形成环或错连
+
+			int digit = (current->data / exp) % 10;
+			if (buckets[digit] == NULL)
+			{
+				buckets[digit] = current;
+				tails[digit] = current;
+			}
+			else
+			{
+				tails[digit]->next = current;
+				tails[digit] = current;
+			}
+			current = next;
+		}
+		Node* newHead = NULL;
+		Node* newTail = NULL;
+		for (int i = 0; i < 10; i++)
+		{
+			if (buckets[i] != NULL)
+			{
+				if (newHead == NULL)
+				{
+					newHead = buckets[i];
+					newTail = tails[i];
+				}
+				else
+				{
+					newTail->next = buckets[i];
+					newTail = tails[i];
+				}
+			}
+		}
+		if (newTail != NULL)
+			newTail->next = NULL;
+		head = newHead;
+	}
+	return head;
+}
+
+int main()
+{
+	srand((unsigned int)time(NULL));
+	Node* head = NULL;
+	for (int i = 0; i < 100000; i++)
+	{
+		Node* newNode = (Node*)malloc(sizeof(Node));
+		newNode->data = rand() % 100;
+		newNode->next = head;
+		head = newNode;
+	}
+	printf("链表已创建！\n");
+	double clock1 = clock();
+	head = radixSort(head);
+	double clock2 = clock();
+	printf("排序完成:\n");
+	printf("排序时间: %f 秒\n", (double)(clock2 - clock1) / CLOCKS_PER_SEC);
+	return 0;
+}
--- a/cs5/5_4/5_4.csproj
+++ b/cs5/5_4/5_4.csproj
@@ -0,0 +1,11 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net8.0</TargetFramework>
+    <RootNamespace>_5_4</RootNamespace>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>
--- a/cs5/5_4/5_4.sln
+++ b/cs5/5_4/5_4.sln
@@ -0,0 +1,25 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.14.36616.10 d17.14
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "5_4", "5_4.csproj", "{43F29EB3-99B5-4064-911E-3B3570272923}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{43F29EB3-99B5-4064-911E-3B3570272923}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{43F29EB3-99B5-4064-911E-3B3570272923}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{43F29EB3-99B5-4064-911E-3B3570272923}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{43F29EB3-99B5-4064-911E-3B3570272923}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {20D2A0A1-A7D4-4CAC-BC03-AACF2D5F63B0}
+	EndGlobalSection
+EndGlobal
--- a/cs5/5_4/Program.cs
+++ b/cs5/5_4/Program.cs
@@ -0,0 +1,60 @@
+namespace _5_4
+{
+    public abstract class Shape
+    {
+        protected string name;
+        public Shape(string name)
+        {
+            this.name = name;
+        }
+        public abstract void Show();
+        public abstract double Area();
+    }
+    public class Rectangle : Shape
+    {
+        protected double width;
+        protected double height;
+        public Rectangle(string name, double width, double height) : base(name)
+        {
+            this.width = width;
+            this.height = height;
+        }
+        public override void Show()
+        {
+            Console.WriteLine("Rectangle: {0} , area :{1}", name, width * height);
+        }
+        public override double Area()
+        {
+            return width * height;
+        }
+    }
+    public class Circle : Shape
+    {
+        protected double radius;
+        public Circle(string name, double radius) : base(name)
+        {
+            this.radius = radius;
+        }
+        public override void Show()
+        {
+            Console.WriteLine("Circle: {0} , area :{1}", name, Math.PI * radius * radius);
+        }
+        public override double Area()
+        {
+            return Math.PI * radius * radius;
+        }
+    }
+    public class Program
+    {
+        static void Main(string[] args)
+        {
+            Shape[] s = { new Rectangle("小矩形",1.0,2.0),
+                         new Circle("大源",5.0),
+                        };
+            foreach (Shape shape in s)
+            {
+                shape.Show();
+            }
+        }
+    }
+}
--- a/cs5/5_5/5_5.csproj
+++ b/cs5/5_5/5_5.csproj
@@ -0,0 +1,11 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net8.0</TargetFramework>
+    <RootNamespace>_5_5</RootNamespace>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>
--- a/cs5/5_5/5_5.sln
+++ b/cs5/5_5/5_5.sln
@@ -0,0 +1,25 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.14.36616.10 d17.14
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "5_5", "5_5.csproj", "{C2EFCC00-2BDF-4E39-BBF1-FB54B8CB2708}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{C2EFCC00-2BDF-4E39-BBF1-FB54B8CB2708}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{C2EFCC00-2BDF-4E39-BBF1-FB54B8CB2708}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{C2EFCC00-2BDF-4E39-BBF1-FB54B8CB2708}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{C2EFCC00-2BDF-4E39-BBF1-FB54B8CB2708}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {987BE462-C992-48BE-98EB-41564DDA8179}
+	EndGlobalSection
+EndGlobal
--- a/cs5/5_5/Program.cs
+++ b/cs5/5_5/Program.cs
@@ -0,0 +1,46 @@
+namespace _5_5
+{
+    public struct Complex
+    {
+        public int real;
+        public int imag;
+        public Complex(int r, int i)
+        {
+            this.real = r;
+            this.imag = i;
+        }
+        public static Complex operator +(Complex c1, Complex c2)
+        {
+            return new Complex(c1.real + c2.real, c1.imag + c2.imag);
+        }
+        public static Complex operator -(Complex c1, Complex c2)
+        {
+            return new Complex(c1.real - c2.real, c1.imag - c2.imag);
+        }
+        public static Complex operator *(Complex c1, Complex c2)
+        {
+            return new Complex(c1.real * c2.real - c1.imag * c2.imag, c1.real * c2.imag + c1.imag * c2.real);
+        }
+        public override string ToString()
+        {
+            return (string.Format("{0}+{1}i", this.real, this.imag));
+        }
+    }
+    public class Program
+    {
+        static void Main(string[] args)
+        {
+            Complex c1 = new Complex(2, 3);
+            Complex c2 = new Complex(4, 5);
+            Complex sum = c1 + c2;
+            Complex diff = c1 - c2;
+            Complex prod = c1 * c2;
+            Console.WriteLine("第一个复数" + c1);
+            Console.WriteLine("第二个复数" + c2);
+            Console.WriteLine("复数的和" + sum);
+            Console.WriteLine("复数的差" + diff);
+            Console.WriteLine("复数的积" + prod);
+            Console.ReadKey();
+        }
+    }
+}
--- a/cs5/5_6/5_6.csproj
+++ b/cs5/5_6/5_6.csproj
@@ -0,0 +1,11 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net8.0</TargetFramework>
+    <RootNamespace>_5_6</RootNamespace>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>
--- a/cs5/5_6/5_6.sln
+++ b/cs5/5_6/5_6.sln
@@ -0,0 +1,25 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.14.36616.10 d17.14
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "5_6", "5_6.csproj", "{93E19541-FEF3-4004-878B-615610904002}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{93E19541-FEF3-4004-878B-615610904002}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{93E19541-FEF3-4004-878B-615610904002}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{93E19541-FEF3-4004-878B-615610904002}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{93E19541-FEF3-4004-878B-615610904002}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {49161CD3-DF8F-4571-A2D5-DDDC82BFFCC2}
+	EndGlobalSection
+EndGlobal
--- a/cs5/5_6/Program.cs
+++ b/cs5/5_6/Program.cs
@@ -0,0 +1,61 @@
+namespace _5_6
+{
+    public interface ICDPlayer
+    {
+        void Play();
+        void Stop();
+        void PreviousTrack();
+        void NextTrack();
+        int CurrentTrack
+        {
+            get;
+        }
+    }
+    public class CDPlayer : ICDPlayer
+    {
+        private int currentTrack = 0;
+        public void Play()
+        {
+            Console.WriteLine("启动CD。。。");
+        }
+        public void Stop()
+        {
+            Console.WriteLine("停止播放CD。。。");
+        }
+        public void PreviousTrack()
+        {
+            if (currentTrack > 0)
+            {
+                currentTrack--;
+            }
+            Console.WriteLine("上一音轨：");
+        }
+        public void NextTrack()
+        {
+            Console.WriteLine("下一音轨：");
+            currentTrack++;
+        }
+        public int CurrentTrack
+        {
+            get
+            {
+                return currentTrack;
+            }
+        }
+    }
+    public class Program
+    {
+        static void Main(string[] args)
+        {
+            CDPlayer mycd = new CDPlayer();
+            mycd.Play();
+            Console.WriteLine("当前音轨：" + mycd.CurrentTrack);
+            mycd.NextTrack();
+            Console.WriteLine("当前音轨：" + mycd.CurrentTrack);
+            mycd.PreviousTrack();
+            Console.WriteLine("当前音轨：" + mycd.CurrentTrack);
+            mycd.Stop();
+
+        }
+    }
+}
--- a/cs5/5_7/5_7.csproj
+++ b/cs5/5_7/5_7.csproj
@@ -0,0 +1,11 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net8.0</TargetFramework>
+    <RootNamespace>_5_7</RootNamespace>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>
--- a/cs5/5_7/5_7.sln
+++ b/cs5/5_7/5_7.sln
@@ -0,0 +1,25 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.14.36616.10 d17.14
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "5_7", "5_7.csproj", "{096FB123-18B3-4727-A914-48480106C798}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{096FB123-18B3-4727-A914-48480106C798}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{096FB123-18B3-4727-A914-48480106C798}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{096FB123-18B3-4727-A914-48480106C798}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{096FB123-18B3-4727-A914-48480106C798}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {02E74EAC-8A72-404C-B90C-C6C9BFD815B0}
+	EndGlobalSection
+EndGlobal
--- a/cs5/5_7/Program.cs
+++ b/cs5/5_7/Program.cs
@@ -0,0 +1,53 @@
+using System;
+using System.Collections;
+namespace _5_7
+{
+    public class NameListEventArgs : EventArgs
+    {
+        public string Name { get; set; }
+        public int Count { get; set; }
+        public NameListEventArgs(string name, int count)
+        {
+            Name = name;
+            Count = count;
+        }
+    }
+    public delegate void NameListEventHandler(object source, NameListEventArgs e);
+    public class NameList
+    {
+        ArrayList list;
+        public event NameListEventHandler nameListEvent;
+        public NameList()
+        {
+            list = new ArrayList();
+        }
+        public void Add(string name)
+        {
+            list.Add(name);
+            if (nameListEvent != null)
+            {
+                nameListEvent(this, new NameListEventArgs(name, list.Count));
+            }
+        }
+    }
+    public class EventDemo
+    {
+        public static void Method1(object source, NameListEventArgs e)
+        {
+            Console.WriteLine("增加项目 {0}", e.Name);
+        }
+        public static void Method2(object source, NameListEventArgs e)
+        {
+            Console.WriteLine("当前项目总数 {0}", e.Count);
+        }
+        public static void Main()
+        {
+            NameList myList = new NameList();
+            myList.nameListEvent += new NameListEventHandler(Method1);
+            myList.nameListEvent += new NameListEventHandler(Method2);
+            myList.Add("张三");
+            myList.Add("李四");
+            myList.Add("王五");
+        }
+    }
+}
--- a/lab/lab.cpp
+++ b/lab/lab.cpp
@@ -0,0 +1,192 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+#define TRUE 1
+#define FALSE 0
+#define queuesize 10
+#define maxvernum 8
+
+typedef struct queue {
+	int elements[queuesize];
+	int front;
+	int rear;
+} queue;
+
+// 入队函数
+int enQueue(queue* q, int value) {
+	if ((q->rear + 1) % queuesize == q->front) {
+		return FALSE;
+	}
+	q->elements[q->rear] = value;
+	q->rear = (q->rear + 1) % queuesize;
+	return TRUE;
+}
+
+// 出队函数
+int deQueue(queue* q, int* value) {
+	if (q->front == q->rear) {
+		return FALSE;
+	}
+	*value = q->elements[q->front];
+	q->front = (q->front + 1) % queuesize;
+	return TRUE;
+}
+
+// 初始化队列
+void initQueue(queue* q) {
+	q->front = 0;
+	q->rear = 0;
+}
+
+// 单链表节点定义
+typedef struct Node {
+	int data;
+	struct Node* next;
+} Node;
+
+// 顶点结点（邻接表头）
+typedef struct VexNode {
+	int vexnum;
+	Node* firstedge;
+} VexNode;
+
+// 邻接表
+typedef struct AdjList {
+	VexNode adjlist[maxvernum];
+	int vexnum;
+	int edgenum;
+} AdjList;
+
+// 定位顶点值
+int locateVex(AdjList* G, int v) {
+	for (int i = 0; i < G->vexnum; i++) {
+		if (G->adjlist[i].vexnum == v) {
+			return i;
+		}
+	}
+	return -1;
+}
+
+// 创建有向图
+void Creategraph(AdjList* g) {
+	int i, k, v1, v2;
+	printf("请输入顶点数和边数(空格分隔)：", maxvernum);
+	scanf_s("%d %d", &g->vexnum, &g->edgenum);
+
+	// 初始化顶点
+	for (i = 0; i < g->vexnum; i++) {
+		g->adjlist[i].vexnum = i + 1;
+		g->adjlist[i].firstedge = NULL;
+	}
+
+	printf("当前顶点为：");
+	for (i = 0; i < g->vexnum; i++) {
+		printf("v%d ", g->adjlist[i].vexnum);
+	}
+	printf("\n");
+
+	// 依次输入每条有向边（弧头 v1 -> 弧尾 v2），用空格分隔
+	for (k = 0; k < g->edgenum; k++) {
+		printf("请输入第%d条有向边的弧头 和 弧尾（用空格分隔）：", k + 1);
+		scanf_s("%d %d", &v1, &v2);
+		int i_idx = locateVex(g, v1);
+		int j_idx = locateVex(g, v2);
+		if (i_idx >= 0 && j_idx >= 0) {
+			// 在 v1 的链表末尾加入 v2
+			Node* bss = (Node*)malloc(sizeof(Node));
+			if (!bss) {
+				printf("内存分配失败");
+				return;
+			}
+			bss->data = v2;
+			bss->next = NULL;
+			if (g->adjlist[i_idx].firstedge == NULL) {
+				g->adjlist[i_idx].firstedge = bss;
+			}
+			else {
+				Node* q = g->adjlist[i_idx].firstedge;
+				while (q->next) q = q->next;
+				q->next = bss;
+			}
+		}
+		else {
+			printf("顶点 %d 或 %d 不存在，边被忽略\n", v1, v2);
+		}
+	}
+
+	// 输出邻接表
+	printf("输出各个顶点的邻接表：\n");
+	for (i = 0; i < g->vexnum; i++) {
+		printf("顶点 v%d", g->adjlist[i].vexnum);
+		Node* p = g->adjlist[i].firstedge;
+		while (p) {
+			printf(" --> v%d", p->data);
+			p = p->next;
+		}
+		printf("\n");
+	}
+}
+
+// 深度优先遍历
+void DFS(AdjList* G, int v, int visited[]) {
+	int i = locateVex(G, v);
+	visited[i] = 1;
+	printf("%d ", G->adjlist[i].vexnum);
+	Node* p = G->adjlist[i].firstedge;
+	while (p != NULL) {
+		int j = locateVex(G, p->data);
+		if (j != -1 && !visited[j]) {
+			DFS(G, p->data, visited);
+		}
+		p = p->next;
+	}
+}
+
+// 广度优先遍历
+void BFS(AdjList* G, int v, int visited[]) {
+	queue q;
+	initQueue(&q);
+	int i = locateVex(G, v);
+	if (i == -1) return;
+	visited[i] = 1;
+	printf("%d ", G->adjlist[i].vexnum);
+	enQueue(&q, v);
+	int w;
+	while (deQueue(&q, &w)) {
+		int k = locateVex(G, w);
+		if (k == -1) continue;
+		Node* p = G->adjlist[k].firstedge;
+		while (p != NULL) {
+			int j = locateVex(G, p->data);
+			if (j != -1 && !visited[j]) {
+				visited[j] = 1;
+				printf("%d ", G->adjlist[j].vexnum);
+				enQueue(&q, p->data);
+			}
+			p = p->next;
+		}
+	}
+}
+
+int main() {
+	AdjList G;
+	Creategraph(&G);
+	int visited[maxvernum] = { 0 };
+	printf("深度优先遍历结果：");
+	for (int i = 0; i < G.vexnum; i++) {
+		if (!visited[i]) { 
+			DFS(&G, G.adjlist[i].vexnum, visited);
+		}
+	}
+	printf("\n");
+
+	for (int i = 0; i < maxvernum; i++) visited[i] = 0;
+	printf("广度优先遍历结果：");
+	for (int i = 0; i < G.vexnum; i++) {
+		if (!visited[i]) {
+			BFS(&G, G.adjlist[i].vexnum, visited);
+		}
+	}
+
+	return 0;
+}
--- a/lab/lab.sln
+++ b/lab/lab.sln
@@ -0,0 +1,31 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.14.36623.8 d17.14
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "lab", "lab.vcxproj", "{5D999FD0-2593-4479-ADDA-A7FAAEFDF13E}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|x64 = Debug|x64
+		Debug|x86 = Debug|x86
+		Release|x64 = Release|x64
+		Release|x86 = Release|x86
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{5D999FD0-2593-4479-ADDA-A7FAAEFDF13E}.Debug|x64.ActiveCfg = Debug|x64
+		{5D999FD0-2593-4479-ADDA-A7FAAEFDF13E}.Debug|x64.Build.0 = Debug|x64
+		{5D999FD0-2593-4479-ADDA-A7FAAEFDF13E}.Debug|x86.ActiveCfg = Debug|Win32
+		{5D999FD0-2593-4479-ADDA-A7FAAEFDF13E}.Debug|x86.Build.0 = Debug|Win32
+		{5D999FD0-2593-4479-ADDA-A7FAAEFDF13E}.Release|x64.ActiveCfg = Release|x64
+		{5D999FD0-2593-4479-ADDA-A7FAAEFDF13E}.Release|x64.Build.0 = Release|x64
+		{5D999FD0-2593-4479-ADDA-A7FAAEFDF13E}.Release|x86.ActiveCfg = Release|Win32
+		{5D999FD0-2593-4479-ADDA-A7FAAEFDF13E}.Release|x86.Build.0 = Release|Win32
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {AD21B75E-63D4-4614-872B-9EBA69D211F0}
+	EndGlobalSection
+EndGlobal
--- a/lab/lab.vcxproj
+++ b/lab/lab.vcxproj
@@ -0,0 +1,131 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|x64">
+      <Configuration>Debug</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <VCProjectVersion>17.0</VCProjectVersion>
+    <Keyword>Win32Proj</Keyword>
+    <ProjectGuid>{5d999fd0-2593-4479-adda-a7faaefdf13e}</ProjectGuid>
+    <RootNamespace>lab</RootNamespace>
+    <WindowsTargetPlatformVersion>10.0</WindowsTargetPlatformVersion>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <PlatformToolset>v143</PlatformToolset>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <PlatformToolset>v143</PlatformToolset>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <PlatformToolset>v143</PlatformToolset>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <PlatformToolset>v143</PlatformToolset>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Label="Shared">
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClCompile Include="lab.cpp" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>
--- a/lab/lab.vcxproj.filters
+++ b/lab/lab.vcxproj.filters
@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <Filter Include="源文件">
+      <UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
+      <Extensions>cpp;c;cc;cxx;c++;cppm;ixx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
+    </Filter>
+    <Filter Include="头文件">
+      <UniqueIdentifier>{93995380-89BD-4b04-88EB-625FBE52EBFB}</UniqueIdentifier>
+      <Extensions>h;hh;hpp;hxx;h++;hm;inl;inc;ipp;xsd</Extensions>
+    </Filter>
+    <Filter Include="资源文件">
+      <UniqueIdentifier>{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}</UniqueIdentifier>
+      <Extensions>rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms</Extensions>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="lab.cpp">
+      <Filter>源文件</Filter>
+    </ClCompile>
+  </ItemGroup>
+</Project>
--- a/shiyan3/shiyan3.cpp
+++ b/shiyan3/shiyan3.cpp
@@ -0,0 +1,159 @@
+#include<stdio.h>
+#include<stdlib.h>
+
+typedef struct Tree {
+	char data;
+	struct Tree *lchild;
+	struct Tree *rchild;
+} Tree;
+ 
+// 初始化树
+void initTree(Tree *T) {
+	T->lchild = NULL;
+	T->rchild = NULL;
+	T->data = '0';
+}
+
+// 创建树
+void CreateTree(Tree* T) { 
+	int n = 0, m = 0, i = 0;
+	if (T->data == '0') {
+		printf("请输入该子树根节点的数据：");
+		//getchar();
+		//char x;
+		scanf_s("%c", &T->data);
+		getchar();                    
+	}
+
+	printf("节点%c是否有左子树（0：没有；1：有）:", T->data);
+	scanf_s("%d", &n);
+	getchar();
+
+	if (n == 1) {
+		Tree* lchild = (Tree*)malloc(sizeof(Tree));
+		T->lchild = lchild;
+		lchild->lchild = NULL;
+		lchild->rchild = NULL;
+		lchild->data = '0';
+		CreateTree(T->lchild);
+
+		printf("该节点%c是否存在右子树（0：没有； 1：有）：", T->data);
+		scanf_s("%d", &i);
+		getchar();
+
+		if (i == 1) {
+			Tree* rchild = (Tree*)malloc(sizeof(Tree));
+			T->rchild = rchild;
+			rchild->lchild = NULL;
+			rchild->rchild = NULL;
+			rchild->data = '0';
+			CreateTree(T->rchild);
+		}
+	}
+	else if (n == 0) {
+		printf("节点%c是否有右子树（0：没有；1：有）:", T->data);
+		scanf_s("%d", &m);
+		getchar();
+
+		if (m == 1) {
+			Tree* rchild = (Tree*)malloc(sizeof(Tree));
+			T->rchild = rchild;
+			rchild->lchild = NULL;
+			rchild->rchild = NULL;
+			rchild->data = '0';
+			CreateTree(T->rchild);
+		}
+	}
+}
+
+// 中序遍历
+void LDR(Tree *T) {
+	if (T != NULL) {
+		LDR(T->lchild);
+		printf("%c ", T->data);
+		LDR(T->rchild);
+	}
+}
+
+// 先序遍历
+void DLR(Tree *T) {
+	if (T != NULL) {
+		printf("%c ", T->data);
+		DLR(T->lchild);
+		DLR(T->rchild);
+	}
+}
+
+// 后序遍历
+void LRD(Tree *T) {
+	if (T != NULL) {
+		LRD(T->lchild);
+		LRD(T->rchild);
+		printf("%c ", T->data);
+	}
+}
+
+// 计算叶子节点个数
+int leaves(Tree *T) {
+	int count = 0;
+	if (T == NULL) {
+		return 0;
+	}
+	if (T->lchild == NULL && T->rchild == NULL) {
+		count ++;
+	} else {
+		return leaves(T->lchild) + leaves(T->rchild);
+	}
+	return count;
+}
+
+// 计算树的深度
+int depth(Tree *T) {
+	int ldepth = 0, rdepth = 0;
+	if (T == NULL) {
+		return 0;
+	} else {
+		ldepth = depth(T->lchild);
+		rdepth = depth(T->rchild);
+		return (ldepth > rdepth) ? (ldepth + 1) : (rdepth + 1);
+	}
+}
+
+// 计算树的节点个数
+int nodes(Tree *T) {
+	if (T == NULL) {
+		return 0;
+	} else {
+		return nodes(T->lchild) + nodes(T->rchild) + 1;
+	}
+}
+
+// 计算度为2的节点个数
+int degree2nodes(Tree *T) {
+	int count = 0;
+	if (T == NULL) {
+		return 0;
+	}
+	if (T->lchild != NULL && T->rchild != NULL) {
+		count ++;
+	}
+	return count + degree2nodes(T->lchild) + degree2nodes(T->rchild);
+}
+
+int main() {
+	Tree bss;
+	initTree(&bss);
+
+	CreateTree(&bss);
+	printf("中序遍历结果为：\n");
+	LDR(&bss);
+	printf("\n先序遍历结果为：\n");
+	DLR(&bss);
+	printf("\n后序遍历结果为：\n");
+	LRD(&bss);
+	printf("\n叶子节点个数为：%d\n", leaves(&bss));
+	printf("树的深度为：%d\n", depth(&bss));
+	printf("树的节点个数为：%d\n", nodes(&bss));
+	printf("度为2的节点个数为：%d\n", degree2nodes(&bss));
+	return 0;
+}
--- a/shiyan3/shiyan3.sln
+++ b/shiyan3/shiyan3.sln
@@ -0,0 +1,31 @@
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--- a/shiyan3/shiyan3.vcxproj
+++ b/shiyan3/shiyan3.vcxproj
@@ -0,0 +1,131 @@
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+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClCompile Include="shiyan3.cpp" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>
--- a/shiyan3/shiyan3.vcxproj.filters
+++ b/shiyan3/shiyan3.vcxproj.filters
@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <Filter Include="源文件">
+      <UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
+      <Extensions>cpp;c;cc;cxx;c++;cppm;ixx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
+    </Filter>
+    <Filter Include="头文件">
+      <UniqueIdentifier>{93995380-89BD-4b04-88EB-625FBE52EBFB}</UniqueIdentifier>
+      <Extensions>h;hh;hpp;hxx;h++;hm;inl;inc;ipp;xsd</Extensions>
+    </Filter>
+    <Filter Include="资源文件">
+      <UniqueIdentifier>{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}</UniqueIdentifier>
+      <Extensions>rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms</Extensions>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="shiyan3.cpp">
+      <Filter>源文件</Filter>
+    </ClCompile>
+  </ItemGroup>
+</Project>
--- a/shiyan3/作业7.cpp
+++ b/shiyan3/作业7.cpp
@@ -0,0 +1,159 @@
+#include<stdio.h>
+#include<stdlib.h>
+
+typedef struct Tree {
+	char data;
+	struct Tree *lchild;
+	struct Tree *rchild;
+} Tree;
+ 
+// 初始化树
+void initTree(Tree *T) {
+	T->lchild = NULL;
+	T->rchild = NULL;
+	T->data = '0';
+}
+
+// 创建树
+void CreateTree(Tree* T) { 
+	int n = 0, m = 0, i = 0;
+	if (T->data == '0') {
+		printf("请输入该子树根节点的数据：");
+		//getchar();
+		//char x;
+		scanf_s("%c", &T->data);
+		getchar();                    
+	}
+
+	printf("节点%c是否有左子树（0：没有；1：有）:", T->data);
+	scanf_s("%d", &n);
+	getchar();
+
+	if (n == 1) {
+		Tree* lchild = (Tree*)malloc(sizeof(Tree));
+		T->lchild = lchild;
+		lchild->lchild = NULL;
+		lchild->rchild = NULL;
+		lchild->data = '0';
+		CreateTree(T->lchild);
+
+		printf("该节点%c是否存在右子树（0：没有； 1：有）：", T->data);
+		scanf_s("%d", &i);
+		getchar();
+
+		if (i == 1) {
+			Tree* rchild = (Tree*)malloc(sizeof(Tree));
+			T->rchild = rchild;
+			rchild->lchild = NULL;
+			rchild->rchild = NULL;
+			rchild->data = '0';
+			CreateTree(T->rchild);
+		}
+	}
+	else if (n == 0) {
+		printf("节点%c是否有右子树（0：没有；1：有）:", T->data);
+		scanf_s("%d", &m);
+		getchar();
+
+		if (m == 1) {
+			Tree* rchild = (Tree*)malloc(sizeof(Tree));
+			T->rchild = rchild;
+			rchild->lchild = NULL;
+			rchild->rchild = NULL;
+			rchild->data = '0';
+			CreateTree(T->rchild);
+		}
+	}
+}
+
+// 中序遍历
+void LDR(Tree *T) {
+	if (T != NULL) {
+		LDR(T->lchild);
+		printf("%c ", T->data);
+		LDR(T->rchild);
+	}
+}
+
+// 先序遍历
+void DLR(Tree *T) {
+	if (T != NULL) {
+		printf("%c ", T->data);
+		DLR(T->lchild);
+		DLR(T->rchild);
+	}
+}
+
+// 后序遍历
+void LRD(Tree *T) {
+	if (T != NULL) {
+		LRD(T->lchild);
+		LRD(T->rchild);
+		printf("%c ", T->data);
+	}
+}
+
+// 计算叶子节点个数
+int leaves(Tree *T) {
+	int count = 0;
+	if (T == NULL) {
+		return 0;
+	}
+	if (T->lchild == NULL && T->rchild == NULL) {
+		count ++;
+	} else {
+		return leaves(T->lchild) + leaves(T->rchild);
+	}
+	return count;
+}
+
+// 计算树的深度
+int depth(Tree *T) {
+	int ldepth = 0, rdepth = 0;
+	if (T == NULL) {
+		return 0;
+	} else {
+		ldepth = depth(T->lchild);
+		rdepth = depth(T->rchild);
+		return (ldepth > rdepth) ? (ldepth + 1) : (rdepth + 1);
+	}
+}
+
+// 计算树的节点个数
+int nodes(Tree *T) {
+	if (T == NULL) {
+		return 0;
+	} else {
+		return nodes(T->lchild) + nodes(T->rchild) + 1;
+	}
+}
+
+// 计算度为2的节点个数
+int degree2nodes(Tree *T) {
+	int count = 0;
+	if (T == NULL) {
+		return 0;
+	}
+	if (T->lchild != NULL && T->rchild != NULL) {
+		count ++;
+	}
+	return count + degree2nodes(T->lchild) + degree2nodes(T->rchild);
+}
+
+int main() {
+	Tree bss;
+	initTree(&bss);
+
+	CreateTree(&bss);
+	printf("中序遍历结果为：\n");
+	LDR(&bss);
+	printf("\n先序遍历结果为：\n");
+	DLR(&bss);
+	printf("\n后序遍历结果为：\n");
+	LRD(&bss);
+	printf("\n叶子节点个数为：%d\n", leaves(&bss));
+	printf("树的深度为：%d\n", depth(&bss));
+	printf("树的节点个数为：%d\n", nodes(&bss));
+	printf("度为2的节点个数为：%d\n", degree2nodes(&bss));
+	return 0;
+}