optimise files

CS/19/19.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}") = "19_7", "19_7.csproj", "{D00119C0-20C4-489C-B18D-8B6EACF99772}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{D00119C0-20C4-489C-B18D-8B6EACF99772}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{D00119C0-20C4-489C-B18D-8B6EACF99772}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{D00119C0-20C4-489C-B18D-8B6EACF99772}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{D00119C0-20C4-489C-B18D-8B6EACF99772}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {02DA03F4-0B51-4E99-BCC1-67D3C471BA0C}
+	EndGlobalSection
+EndGlobal

CS/19/19_7.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>{D00119C0-20C4-489C-B18D-8B6EACF99772}</ProjectGuid>
+    <OutputType>WinExe</OutputType>
+    <RootNamespace>_19</RootNamespace>
+    <AssemblyName>19</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>

CS/19/Form1.Designer.cs

@@ -0,0 +1,111 @@
+namespace _19
+{
+    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.richTextBox1 = new System.Windows.Forms.RichTextBox();
+            this.buttonOpen = new System.Windows.Forms.Button();
+            this.buttonSave = new System.Windows.Forms.Button();
+            this.buttonFonts = new System.Windows.Forms.Button();
+            this.buttonExit = new System.Windows.Forms.Button();
+            this.SuspendLayout();
+            // 
+            // richTextBox1
+            // 
+            this.richTextBox1.Location = new System.Drawing.Point(0, 0);
+            this.richTextBox1.Name = "richTextBox1";
+            this.richTextBox1.Size = new System.Drawing.Size(631, 452);
+            this.richTextBox1.TabIndex = 0;
+            this.richTextBox1.Text = "";
+            // 
+            // buttonOpen
+            // 
+            this.buttonOpen.Location = new System.Drawing.Point(667, 36);
+            this.buttonOpen.Name = "buttonOpen";
+            this.buttonOpen.Size = new System.Drawing.Size(99, 39);
+            this.buttonOpen.TabIndex = 1;
+            this.buttonOpen.Text = "打开文件";
+            this.buttonOpen.UseVisualStyleBackColor = true;
+            this.buttonOpen.Click += new System.EventHandler(this.buttonOpen_Click);
+            // 
+            // buttonSave
+            // 
+            this.buttonSave.Location = new System.Drawing.Point(667, 81);
+            this.buttonSave.Name = "buttonSave";
+            this.buttonSave.Size = new System.Drawing.Size(99, 39);
+            this.buttonSave.TabIndex = 2;
+            this.buttonSave.Text = "保存文件";
+            this.buttonSave.UseVisualStyleBackColor = true;
+            this.buttonSave.Click += new System.EventHandler(this.buttonSave_Click);
+            // 
+            // buttonFonts
+            // 
+            this.buttonFonts.Location = new System.Drawing.Point(667, 207);
+            this.buttonFonts.Name = "buttonFonts";
+            this.buttonFonts.Size = new System.Drawing.Size(99, 39);
+            this.buttonFonts.TabIndex = 3;
+            this.buttonFonts.Text = "字体";
+            this.buttonFonts.UseVisualStyleBackColor = true;
+            this.buttonFonts.Click += new System.EventHandler(this.buttonFonts_Click);
+            // 
+            // buttonExit
+            // 
+            this.buttonExit.Location = new System.Drawing.Point(667, 315);
+            this.buttonExit.Name = "buttonExit";
+            this.buttonExit.Size = new System.Drawing.Size(99, 39);
+            this.buttonExit.TabIndex = 4;
+            this.buttonExit.Text = "关闭";
+            this.buttonExit.UseVisualStyleBackColor = true;
+            this.buttonExit.Click += new System.EventHandler(this.buttonExit_Click);
+            // 
+            // 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.buttonExit);
+            this.Controls.Add(this.buttonFonts);
+            this.Controls.Add(this.buttonSave);
+            this.Controls.Add(this.buttonOpen);
+            this.Controls.Add(this.richTextBox1);
+            this.Name = "Form1";
+            this.Text = "Form1";
+            this.ResumeLayout(false);
+
+        }
+
+        #endregion
+
+        private System.Windows.Forms.RichTextBox richTextBox1;
+        private System.Windows.Forms.Button buttonOpen;
+        private System.Windows.Forms.Button buttonSave;
+        private System.Windows.Forms.Button buttonFonts;
+        private System.Windows.Forms.Button buttonExit;
+    }
+}
+

CS/19/Form1.cs

@@ -0,0 +1,64 @@
+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 _19
+{
+    public partial class Form1 : Form
+    {
+        public Form1()
+        {
+            InitializeComponent();
+        }
+
+        private void buttonOpen_Click(object sender, EventArgs e)
+        {
+            OpenFileDialog openFileDialog1= new OpenFileDialog();
+            openFileDialog1.InitialDirectory = @"C:/";
+            openFileDialog1.Filter = "rtf files (*.rtf) | *.rtf";
+            openFileDialog1.FilterIndex = 2;
+            openFileDialog1.RestoreDirectory = true;
+            if (openFileDialog1.ShowDialog() == DialogResult.OK)
+            {
+                richTextBox1.LoadFile(openFileDialog1.FileName);
+            }
+        }
+
+        private void buttonSave_Click(object sender, EventArgs e)
+        {
+            SaveFileDialog saveFileDialog1= new SaveFileDialog();
+            saveFileDialog1.InitialDirectory = @"C:/";
+            saveFileDialog1.Filter = "rtf files (*.rtf) | *.rtf";
+            saveFileDialog1.FilterIndex = 1;
+            saveFileDialog1.RestoreDirectory = true;
+            if (saveFileDialog1.ShowDialog() == DialogResult.OK)
+            {
+                richTextBox1.LoadFile(saveFileDialog1.FileName);
+            }
+        }
+
+        private void buttonFonts_Click(object sender, EventArgs e)
+        {
+            FontDialog fontDialog1= new FontDialog();
+            fontDialog1.ShowColor = true;
+            fontDialog1.Font=richTextBox1.SelectionFont;
+            fontDialog1.Color = richTextBox1.SelectionColor;
+            if (fontDialog1.ShowDialog() != DialogResult.Cancel)
+            {
+                richTextBox1.SelectionFont = fontDialog1.Font;
+                richTextBox1.SelectionColor = fontDialog1.Color;
+            }
+        }
+
+        private void buttonExit_Click(object sender, EventArgs e)
+        {
+            this.Close();
+        }
+    }
+}

CS/19/Program.cs

@@ -0,0 +1,22 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace _19
+{
+    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());
+        }
+    }
+}

CS/19/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("19")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("19")]
+[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("d00119c0-20c4-489c-b18d-8b6eacf99772")]
+
+// 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")]

CS/19/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 _19.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("_19.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;
+            }
+        }
+    }
+}

CS/19/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 _19.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;
+            }
+        }
+    }
+}

CS/19_10/19_10.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>{8338C46B-EF4C-41D8-ACF3-181B875AA849}</ProjectGuid>
+    <OutputType>WinExe</OutputType>
+    <RootNamespace>_19_10</RootNamespace>
+    <AssemblyName>19_10</AssemblyName>
+    <TargetFrameworkVersion>v4.8</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>

CS/19_10/19_10.sln

@@ -0,0 +1,25 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.14.36717.8 d17.14
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "19_10", "19_10.csproj", "{8338C46B-EF4C-41D8-ACF3-181B875AA849}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{8338C46B-EF4C-41D8-ACF3-181B875AA849}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{8338C46B-EF4C-41D8-ACF3-181B875AA849}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{8338C46B-EF4C-41D8-ACF3-181B875AA849}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{8338C46B-EF4C-41D8-ACF3-181B875AA849}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {A285CB43-7622-40C1-B71E-B30470DA5C83}
+	EndGlobalSection
+EndGlobal

CS/19_10/App.config

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<configuration>
+    <startup> 
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.8" />
+    </startup>
+</configuration>

CS/19_10/Form1.Designer.cs

@@ -0,0 +1,49 @@
+namespace _19_10
+{
+    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.SuspendLayout();
+            // 
+            // 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.Name = "Form1";
+            this.Text = "Form1";
+            this.Load += new System.EventHandler(this.Form1_Load);
+            this.Paint += new System.Windows.Forms.PaintEventHandler(this.Form1_Paint);
+            this.ResumeLayout(false);
+
+        }
+
+        #endregion
+    }
+}
+

CS/19_10/Form1.cs

@@ -0,0 +1,51 @@
+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 _19_10
+{
+    public partial class Form1 : Form
+    {
+        public Form1()
+        {
+            InitializeComponent();
+        }
+
+        private void Form1_Load(object sender, EventArgs e)
+        {
+
+        }
+
+        private void Form1_Paint(object sender, PaintEventArgs e)
+        {
+            Graphics g = e.Graphics; Pen pen = new Pen(Color.Red, 3);
+            SolidBrush brush = new SolidBrush(Color.Blue);
+            Font font = new Font("宋体", 12);
+            g.DrawLine(pen, 5, 5, 215, 5);
+            g.DrawString("Line", font, brush, 210, 0);
+            g.DrawRectangle(pen, 5, 10, 100, 15);
+            g.FillRectangle(brush, 110, 10, 100, 15);
+            g.DrawString("Rectangle", font, brush, 210, 15);
+            g.DrawEllipse(pen, 5, 30, 100, 15);
+            g.FillEllipse(brush, 110, 30, 100, 15);
+            g.DrawString("Ellipse", font, brush, 210, 30);
+            Point[] pts1 = { new Point(50, 50), new Point(25, 75), new Point(75, 75) };
+            g.DrawPolygon(pen, pts1);
+            Point[] pts2 = { new Point(150, 50), new Point(125, 75), new Point(175, 75) };
+            g.FillPolygon(brush, pts2);
+            g.DrawString("Polygon", font, brush, 210, 50);
+            for (int i= 0; i < 360; i += 60)
+            {
+                g.DrawArc(pen, 5, 100, 80, 80, i, 30);
+            }
+            g.DrawString("Arc", font, brush, 5, 190);
+            Rectangle rec2 = new Rectangle(100, 90, 100, 100);
+        }
+    }
+}

CS/19_10/Program.cs

@@ -0,0 +1,22 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace _19_10
+{
+    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());
+        }
+    }
+}

CS/19_10/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("19_10")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("19_10")]
+[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("8338c46b-ef4c-41d8-acf3-181b875aa849")]
+
+// 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")]

CS/19_10/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 _19_10.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("_19_10.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;
+            }
+        }
+    }
+}

CS/19_10/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 _19_10.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;
+            }
+        }
+    }
+}

CS/19_5/19_5.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>{5A20A0CD-AA7C-4B85-8F79-7D6528D88EA6}</ProjectGuid>
+    <OutputType>WinExe</OutputType>
+    <RootNamespace>_19_5</RootNamespace>
+    <AssemblyName>19_5</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>

CS/19_5/19_5.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}") = "19_5", "19_5.csproj", "{5A20A0CD-AA7C-4B85-8F79-7D6528D88EA6}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{5A20A0CD-AA7C-4B85-8F79-7D6528D88EA6}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{5A20A0CD-AA7C-4B85-8F79-7D6528D88EA6}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{5A20A0CD-AA7C-4B85-8F79-7D6528D88EA6}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{5A20A0CD-AA7C-4B85-8F79-7D6528D88EA6}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {7E663738-785A-4350-84C3-D900DC092CEA}
+	EndGlobalSection
+EndGlobal

CS/19_5/Form1.Designer.cs

@@ -0,0 +1,167 @@
+namespace _19_5
+{
+    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.components = new System.ComponentModel.Container();
+            System.ComponentModel.ComponentResourceManager resources = new System.ComponentModel.ComponentResourceManager(typeof(Form1));
+            this.pictureBox1 = new System.Windows.Forms.PictureBox();
+            this.imageList1 = new System.Windows.Forms.ImageList(this.components);
+            this.button1 = new System.Windows.Forms.Button();
+            this.button2 = new System.Windows.Forms.Button();
+            ((System.ComponentModel.ISupportInitialize)(this.pictureBox1)).BeginInit();
+            this.SuspendLayout();
+            // 
+            // pictureBox1
+            // 
+            this.pictureBox1.Location = new System.Drawing.Point(12, 12);
+            this.pictureBox1.Name = "pictureBox1";
+            this.pictureBox1.Size = new System.Drawing.Size(776, 374);
+            this.pictureBox1.TabIndex = 0;
+            this.pictureBox1.TabStop = false;
+            // 
+            // imageList1
+            // 
+            this.imageList1.ImageStream = ((System.Windows.Forms.ImageListStreamer)(resources.GetObject("imageList1.ImageStream")));
+            this.imageList1.TransparentColor = System.Drawing.Color.Transparent;
+            this.imageList1.Images.SetKeyName(0, "1.png");
+            this.imageList1.Images.SetKeyName(1, "屏幕截图 2025-07-01 183403.png");
+            this.imageList1.Images.SetKeyName(2, "屏幕截图 2025-07-01 184152.png");
+            this.imageList1.Images.SetKeyName(3, "屏幕截图 2025-07-05 093315.png");
+            this.imageList1.Images.SetKeyName(4, "屏幕截图 2025-07-05 154049.png");
+            this.imageList1.Images.SetKeyName(5, "屏幕截图 2025-07-07 201351.png");
+            this.imageList1.Images.SetKeyName(6, "屏幕截图 2025-07-14 200036.png");
+            this.imageList1.Images.SetKeyName(7, "屏幕截图 2025-08-11 120521.png");
+            this.imageList1.Images.SetKeyName(8, "屏幕截图 2025-08-11 154444.png");
+            this.imageList1.Images.SetKeyName(9, "屏幕截图 2025-08-11 184507.png");
+            this.imageList1.Images.SetKeyName(10, "屏幕截图 2025-08-13 203513.png");
+            this.imageList1.Images.SetKeyName(11, "屏幕截图 2025-08-15 101049.png");
+            this.imageList1.Images.SetKeyName(12, "屏幕截图 2025-08-17 103621.png");
+            this.imageList1.Images.SetKeyName(13, "屏幕截图 2025-08-18 174048.png");
+            this.imageList1.Images.SetKeyName(14, "屏幕截图 2025-08-26 080159.png");
+            this.imageList1.Images.SetKeyName(15, "屏幕截图 2025-08-30 123544.png");
+            this.imageList1.Images.SetKeyName(16, "屏幕截图 2025-08-30 123859.png");
+            this.imageList1.Images.SetKeyName(17, "屏幕截图 2025-08-31 202820.png");
+            this.imageList1.Images.SetKeyName(18, "屏幕截图 2025-08-31 203741.png");
+            this.imageList1.Images.SetKeyName(19, "屏幕截图 2025-09-02 193444.png");
+            this.imageList1.Images.SetKeyName(20, "屏幕截图 2025-09-02 212550.png");
+            this.imageList1.Images.SetKeyName(21, "屏幕截图 2025-09-02 213744.png");
+            this.imageList1.Images.SetKeyName(22, "屏幕截图 2025-09-02 213959.png");
+            this.imageList1.Images.SetKeyName(23, "屏幕截图 2025-09-02 214228.png");
+            this.imageList1.Images.SetKeyName(24, "屏幕截图 2025-09-04 190733.png");
+            this.imageList1.Images.SetKeyName(25, "屏幕截图 2025-09-05 182808.png");
+            this.imageList1.Images.SetKeyName(26, "屏幕截图 2025-09-07 100418.png");
+            this.imageList1.Images.SetKeyName(27, "屏幕截图 2025-09-07 180258.png");
+            this.imageList1.Images.SetKeyName(28, "屏幕截图 2025-09-08 184113.png");
+            this.imageList1.Images.SetKeyName(29, "屏幕截图 2025-09-09 124933.png");
+            this.imageList1.Images.SetKeyName(30, "屏幕截图 2025-09-09 130249.png");
+            this.imageList1.Images.SetKeyName(31, "屏幕截图 2025-09-17 195026.png");
+            this.imageList1.Images.SetKeyName(32, "屏幕截图 2025-09-25 184539.png");
+            this.imageList1.Images.SetKeyName(33, "屏幕截图 2025-10-05 130902.png");
+            this.imageList1.Images.SetKeyName(34, "屏幕截图 2025-10-05 131332.png");
+            this.imageList1.Images.SetKeyName(35, "屏幕截图 2025-10-05 165655.png");
+            this.imageList1.Images.SetKeyName(36, "屏幕截图 2025-10-05 170005.png");
+            this.imageList1.Images.SetKeyName(37, "屏幕截图 2025-10-05 170748.png");
+            this.imageList1.Images.SetKeyName(38, "屏幕截图 2025-10-05 171022.png");
+            this.imageList1.Images.SetKeyName(39, "屏幕截图 2025-10-05 171402.png");
+            this.imageList1.Images.SetKeyName(40, "屏幕截图 2025-10-07 143000.png");
+            this.imageList1.Images.SetKeyName(41, "屏幕截图 2025-10-13 214639.png");
+            this.imageList1.Images.SetKeyName(42, "屏幕截图 2025-10-19 185139.png");
+            this.imageList1.Images.SetKeyName(43, "屏幕截图 2025-10-19 185156.png");
+            this.imageList1.Images.SetKeyName(44, "屏幕截图 2025-10-19 185210.png");
+            this.imageList1.Images.SetKeyName(45, "屏幕截图 2025-10-19 185224.png");
+            this.imageList1.Images.SetKeyName(46, "屏幕截图 2025-10-19 193542.png");
+            this.imageList1.Images.SetKeyName(47, "屏幕截图 2025-10-23 123054.png");
+            this.imageList1.Images.SetKeyName(48, "屏幕截图 2025-10-25 205734.png");
+            this.imageList1.Images.SetKeyName(49, "屏幕截图 2025-10-26 085153.png");
+            this.imageList1.Images.SetKeyName(50, "屏幕截图 2025-10-26 085210.png");
+            this.imageList1.Images.SetKeyName(51, "屏幕截图 2025-10-26 093840.png");
+            this.imageList1.Images.SetKeyName(52, "屏幕截图 2025-10-26 095232.png");
+            this.imageList1.Images.SetKeyName(53, "屏幕截图 2025-10-26 095613.png");
+            this.imageList1.Images.SetKeyName(54, "屏幕截图 2025-10-26 095735.png");
+            this.imageList1.Images.SetKeyName(55, "屏幕截图 2025-10-26 102138.png");
+            this.imageList1.Images.SetKeyName(56, "屏幕截图 2025-10-26 170549.png");
+            this.imageList1.Images.SetKeyName(57, "屏幕截图 2025-10-27 211205.png");
+            this.imageList1.Images.SetKeyName(58, "屏幕截图 2025-10-27 212916.png");
+            this.imageList1.Images.SetKeyName(59, "屏幕截图 2025-10-28 212112.png");
+            this.imageList1.Images.SetKeyName(60, "屏幕截图 2025-11-02 145452.png");
+            this.imageList1.Images.SetKeyName(61, "屏幕截图 2025-11-02 145518.png");
+            this.imageList1.Images.SetKeyName(62, "屏幕截图 2025-11-04 184123.png");
+            this.imageList1.Images.SetKeyName(63, "屏幕截图 2025-11-12 113619.png");
+            this.imageList1.Images.SetKeyName(64, "屏幕截图 2025-11-12 113917.png");
+            this.imageList1.Images.SetKeyName(65, "屏幕截图 2025-11-15 212822.png");
+            // 
+            // button1
+            // 
+            this.button1.ImageList = this.imageList1;
+            this.button1.Location = new System.Drawing.Point(56, 393);
+            this.button1.Name = "button1";
+            this.button1.Size = new System.Drawing.Size(217, 54);
+            this.button1.TabIndex = 1;
+            this.button1.Text = "上一张";
+            this.button1.TextAlign = System.Drawing.ContentAlignment.MiddleLeft;
+            this.button1.UseVisualStyleBackColor = true;
+            this.button1.Click += new System.EventHandler(this.button1_Click);
+            // 
+            // button2
+            // 
+            this.button2.ImageList = this.imageList1;
+            this.button2.Location = new System.Drawing.Point(530, 393);
+            this.button2.Name = "button2";
+            this.button2.Size = new System.Drawing.Size(228, 54);
+            this.button2.TabIndex = 2;
+            this.button2.Text = "下一张";
+            this.button2.TextAlign = System.Drawing.ContentAlignment.MiddleRight;
+            this.button2.UseVisualStyleBackColor = true;
+            this.button2.Click += new System.EventHandler(this.button2_Click);
+            // 
+            // 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.button2);
+            this.Controls.Add(this.button1);
+            this.Controls.Add(this.pictureBox1);
+            this.Name = "Form1";
+            this.Text = "Form1";
+            this.Load += new System.EventHandler(this.Form1_Load);
+            ((System.ComponentModel.ISupportInitialize)(this.pictureBox1)).EndInit();
+            this.ResumeLayout(false);
+
+        }
+
+        #endregion
+
+        private System.Windows.Forms.PictureBox pictureBox1;
+        private System.Windows.Forms.ImageList imageList1;
+        private System.Windows.Forms.Button button1;
+        private System.Windows.Forms.Button button2;
+    }
+}
+

CS/19_5/Form1.cs

@@ -0,0 +1,47 @@
+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;
+using System.IO;
+
+namespace _19_5
+{
+    public partial class Form1 : Form
+    {
+        string[] imageURLs = Directory.GetFiles(@"C:\Users\BI\Pictures\Screenshots");
+        public Form1()
+        {
+            InitializeComponent();
+        }
+
+        private void Form1_Load(object sender, EventArgs e)
+        {
+            pictureBox1.ImageLocation = imageURLs[0];
+        }
+
+        private void button1_Click(object sender, EventArgs e)
+        {
+            pictureBox1.ImageLocation = imageURLs[button1.ImageIndex];
+            if (button1.ImageIndex > 0)
+            {
+                --button1 .ImageIndex;
+                button2 .ImageIndex = button1 .ImageIndex +1;
+            }
+        }
+
+        private void button2_Click(object sender, EventArgs e)
+        {
+            pictureBox1.ImageLocation = imageURLs[button2.ImageIndex];
+            if (button1.ImageIndex < imageList1.Images.Count -1)
+            {
+                ++button2.ImageIndex;
+                button1.ImageIndex = button2.ImageIndex - 1;
+            }
+        }
+    }
+}

CS/19_5/Form1.resx

@@ -0,0 +1,365 @@
+<?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>
+  <metadata name="imageList1.TrayLocation" type="System.Drawing.Point, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
+    <value>17, 17</value>
+  </metadata>
+  <data name="imageList1.ImageStream" mimetype="application/x-microsoft.net.object.binary.base64">
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+        ARkC3AEABf8C8gH/AfQB9QH/AvQB/wHzAfIC8wH0AvMB9APzAfQS/wHyBvME9ALzAfQB8wG8ARkCAAEZ
+        Bf8B9AL1AvQC9QHzAf8C8wP0AfMB9AH/AfMB/wH0AfMC/wHwAfIB8w3/BPEB8gHwAfME9ALzAvQB8QPi
+        ARkF/wH0Bv8B8wH0AvMB/wH0Af8B8wL/AfQB/wHzAfQC/xAZAfEC8gLxAfMF9ALzAvQB8QP/AfMB9AL/
+        AvUB8gHzAfQC8wH0AvMC8gHzAf8B9AL/AfUD/wLzAv8B2gHbDtQB8QHwARoC8APzA/QC8wL0AfAB9QL0
+        AfIB8wT0BfMB9AHzAfQB8wH/AfIB/wHzAfQB/wHyAf8B9AHzAf8C8wH/Ar4N1AGzARkC8gbzAvQB8wPy
+        AfAP/wH0EP8B9Az/AfMBCQHzAfIP/w/0AQkP9AEJDv8B9QH/AfQB8wX1Cf8P9AEJD/QBCQH/AfEB8wH0
+        AfML/wL0BfUK/w70AfMP9AEZAf8C8wX0CP8B9AHzAfQE9Tn/AfQB8wb1CP8B9AEHAv8B8wHwAv8B8gHx
+        Bv8B9AHwAv8B9AHxAv8B9AHyFv8C9Ab1Cf8B9A//AfID/wH0A/8B9Bb/AfQB8wH0BfU4/wL1D/8B8QHz
+        Av8B8QL/AfMB8AL/AvID/wHyAfQC/wHyAv8B8wHwAv8B8wHyCv8B8gHzAvQE/wLyH/8C9AL/AfQD/wHz
+        A/8B9Ar/AvMC9AHxAvQB9gH0AfMC9ALzAfQB/wH0Ff8B9AG9GP8C8wL0AfEC9AH/A/QF9QH/AvUT/wL1
+        EP8B8gHzAf8B9AHyAv8B9gLzAvQB8QL0Af8B8gH0CP8B9QL/AfUQ/wH1AfQQ/wHyAfMB/wH2AfMC/wH2
+        AfMD9AHzAvQB/wPyAfEE9AH/BPUR/wH1AfQP/wHyAfQC/wLzAv8C9AHzAfIBGwG9AfIB9AH1AvIB8wHy
+        BPMC/wH0AfUB/wH1EP8B9QH0EP8MGQLwAhkB9Ab/AfQC/wP1A/8O9AHzAb0Q9AHbAb4N1AGzAfIB8wb/
+        AfUC8wL0A/8BQgFNAT4HAAE+AwABKAMAAUADAAEQAQECAAEBAQABAQUAAYABCBYAA///AP8A/wD/AP8A
+        /wD/AP8AiQAL
+</value>
+  </data>
+</root>

CS/19_5/Program.cs

@@ -0,0 +1,22 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace _19_5
+{
+    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());
+        }
+    }
+}

CS/19_5/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("19_5")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("19_5")]
+[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("5a20a0cd-aa7c-4b85-8f79-7d6528d88ea6")]
+
+// 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")]

CS/19_5/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 _19_5.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("_19_5.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;
+            }
+        }
+    }
+}

CS/19_5/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>

CS/19_5/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 _19_5.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;
+            }
+        }
+    }
+}

CS/19_5/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>

CS/19_6/19_6.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>{660C124A-A998-4220-86CF-60FD0594DF10}</ProjectGuid>
+    <OutputType>WinExe</OutputType>
+    <RootNamespace>_19_6</RootNamespace>
+    <AssemblyName>19_6</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>

CS/19_6/19_6.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}") = "19_6", "19_6.csproj", "{660C124A-A998-4220-86CF-60FD0594DF10}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{660C124A-A998-4220-86CF-60FD0594DF10}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{660C124A-A998-4220-86CF-60FD0594DF10}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{660C124A-A998-4220-86CF-60FD0594DF10}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{660C124A-A998-4220-86CF-60FD0594DF10}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {B2E9DB68-F57F-453A-A6CF-CD1C04663888}
+	EndGlobalSection
+EndGlobal

CS/19_6/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>

CS/19_6/Form1.Designer.cs

@@ -0,0 +1,125 @@
+namespace _19_6
+{
+    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.components = new System.ComponentModel.Container();
+            this.label1 = new System.Windows.Forms.Label();
+            this.label2 = new System.Windows.Forms.Label();
+            this.label3 = new System.Windows.Forms.Label();
+            this.button1 = new System.Windows.Forms.Button();
+            this.button2 = new System.Windows.Forms.Button();
+            this.timer1 = new System.Windows.Forms.Timer(this.components);
+            this.SuspendLayout();
+            // 
+            // label1
+            // 
+            this.label1.AutoSize = true;
+            this.label1.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D;
+            this.label1.Font = new System.Drawing.Font("宋体", 26F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(134)));
+            this.label1.Location = new System.Drawing.Point(57, 67);
+            this.label1.Name = "label1";
+            this.label1.Size = new System.Drawing.Size(50, 54);
+            this.label1.TabIndex = 0;
+            this.label1.Text = "8";
+            // 
+            // label2
+            // 
+            this.label2.AutoSize = true;
+            this.label2.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D;
+            this.label2.Font = new System.Drawing.Font("宋体", 26F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(134)));
+            this.label2.Location = new System.Drawing.Point(148, 67);
+            this.label2.Name = "label2";
+            this.label2.Size = new System.Drawing.Size(50, 54);
+            this.label2.TabIndex = 1;
+            this.label2.Text = "8";
+            // 
+            // label3
+            // 
+            this.label3.AutoSize = true;
+            this.label3.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D;
+            this.label3.Font = new System.Drawing.Font("宋体", 26F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(134)));
+            this.label3.Location = new System.Drawing.Point(245, 67);
+            this.label3.Name = "label3";
+            this.label3.Size = new System.Drawing.Size(50, 54);
+            this.label3.TabIndex = 2;
+            this.label3.Text = "8";
+            // 
+            // button1
+            // 
+            this.button1.Location = new System.Drawing.Point(57, 162);
+            this.button1.Name = "button1";
+            this.button1.Size = new System.Drawing.Size(87, 40);
+            this.button1.TabIndex = 3;
+            this.button1.Text = "开始";
+            this.button1.UseVisualStyleBackColor = true;
+            this.button1.Click += new System.EventHandler(this.button1_Click);
+            // 
+            // button2
+            // 
+            this.button2.Location = new System.Drawing.Point(190, 162);
+            this.button2.Name = "button2";
+            this.button2.Size = new System.Drawing.Size(82, 40);
+            this.button2.TabIndex = 4;
+            this.button2.Text = "结束";
+            this.button2.UseVisualStyleBackColor = true;
+            this.button2.Click += new System.EventHandler(this.button2_Click);
+            // 
+            // timer1
+            // 
+            this.timer1.Tick += new System.EventHandler(this.timer1_Tick);
+            // 
+            // Form1
+            // 
+            this.AutoScaleDimensions = new System.Drawing.SizeF(9F, 18F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.ClientSize = new System.Drawing.Size(342, 238);
+            this.Controls.Add(this.button2);
+            this.Controls.Add(this.button1);
+            this.Controls.Add(this.label3);
+            this.Controls.Add(this.label2);
+            this.Controls.Add(this.label1);
+            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.Label label2;
+        private System.Windows.Forms.Label label3;
+        private System.Windows.Forms.Button button1;
+        private System.Windows.Forms.Button button2;
+        private System.Windows.Forms.Timer timer1;
+    }
+}
+

CS/19_6/Form1.cs

@@ -0,0 +1,43 @@
+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 _19_6
+{
+    public partial class Form1 : Form
+    {
+        Random r;
+        public Form1()
+        {
+            InitializeComponent();
+        }
+
+        private void Form1_Load(object sender, EventArgs e)
+        {
+            r = new Random();
+        }
+
+        private void button1_Click(object sender, EventArgs e)
+        {
+            timer1.Start();
+        }
+
+        private void button2_Click(object sender, EventArgs e)
+        {
+            timer1.Stop();
+        }
+
+        private void timer1_Tick(object sender, EventArgs e)
+        {
+            label1.Text = r.Next(1,8).ToString();
+            label2.Text = r.Next(1, 8).ToString();
+            label3.Text = r.Next(1, 8).ToString();
+        }
+    }
+}

CS/19_6/Form1.resx

@@ -0,0 +1,123 @@
+<?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>
+  <metadata name="timer1.TrayLocation" type="System.Drawing.Point, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
+    <value>17, 17</value>
+  </metadata>
+</root>

CS/19_6/Program.cs

@@ -0,0 +1,22 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace _19_6
+{
+    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());
+        }
+    }
+}

CS/19_6/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("19_6")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("19_6")]
+[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("660c124a-a998-4220-86cf-60fd0594df10")]
+
+// 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")]

CS/19_6/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 _19_6.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("_19_6.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;
+            }
+        }
+    }
+}

CS/19_6/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>

CS/19_6/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 _19_6.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;
+            }
+        }
+    }
+}

CS/19_6/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>

CS/19_7/19_7.csproj

@@ -0,0 +1,80 @@
+<?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>{237DFA6A-AD6B-4E73-9B0E-998D41CF57C6}</ProjectGuid>
+    <OutputType>WinExe</OutputType>
+    <RootNamespace>_19_7</RootNamespace>
+    <AssemblyName>19_7</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="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>

CS/19_7/19_7.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}") = "19_7", "19_7.csproj", "{237DFA6A-AD6B-4E73-9B0E-998D41CF57C6}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{237DFA6A-AD6B-4E73-9B0E-998D41CF57C6}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{237DFA6A-AD6B-4E73-9B0E-998D41CF57C6}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{237DFA6A-AD6B-4E73-9B0E-998D41CF57C6}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{237DFA6A-AD6B-4E73-9B0E-998D41CF57C6}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {DA127C8F-4B3A-47E9-9556-E7D0D19DABB8}
+	EndGlobalSection
+EndGlobal

CS/19_7/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>

CS/19_7/Form1.Designer.cs

@@ -0,0 +1,40 @@
+namespace _19_7
+{
+    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.components = new System.ComponentModel.Container();
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.ClientSize = new System.Drawing.Size(800, 450);
+            this.Text = "Form1";
+        }
+
+        #endregion
+    }
+}
+

CS/19_7/Form1.cs

@@ -0,0 +1,20 @@
+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 _19_7
+{
+    public partial class Form1 : Form
+    {
+        public Form1()
+        {
+            InitializeComponent();
+        }
+    }
+}

CS/19_7/Program.cs

@@ -0,0 +1,22 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace _19_7
+{
+    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());
+        }
+    }
+}

CS/19_7/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("19_7")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("19_7")]
+[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("237dfa6a-ad6b-4e73-9b0e-998d41cf57c6")]
+
+// 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")]

CS/19_7/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 _19_7.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("_19_7.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;
+            }
+        }
+    }
+}

CS/19_7/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>

CS/19_7/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 _19_7.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;
+            }
+        }
+    }
+}

CS/19_7/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>

CS/19_8/19_8.csproj

@@ -0,0 +1,92 @@
+<?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>{54DB9BA7-10FC-4204-B7EF-4C3A6980887D}</ProjectGuid>
+    <OutputType>WinExe</OutputType>
+    <RootNamespace>_19_8</RootNamespace>
+    <AssemblyName>19_8</AssemblyName>
+    <TargetFrameworkVersion>v4.8</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="Form2.cs">
+      <SubType>Form</SubType>
+    </Compile>
+    <Compile Include="Form2.Designer.cs">
+      <DependentUpon>Form2.cs</DependentUpon>
+    </Compile>
+    <Compile Include="Program.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+    <EmbeddedResource Include="Form1.resx">
+      <DependentUpon>Form1.cs</DependentUpon>
+    </EmbeddedResource>
+    <EmbeddedResource Include="Form2.resx">
+      <DependentUpon>Form2.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>

CS/19_8/19_8.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}") = "19_8", "19_8.csproj", "{54DB9BA7-10FC-4204-B7EF-4C3A6980887D}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{54DB9BA7-10FC-4204-B7EF-4C3A6980887D}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{54DB9BA7-10FC-4204-B7EF-4C3A6980887D}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{54DB9BA7-10FC-4204-B7EF-4C3A6980887D}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{54DB9BA7-10FC-4204-B7EF-4C3A6980887D}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {3104FC24-B5B5-40AA-BB9D-303D73C74F88}
+	EndGlobalSection
+EndGlobal

CS/19_8/App.config

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<configuration>
+    <startup> 
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.8" />
+    </startup>
+</configuration>

CS/19_8/Form1.Designer.cs

@@ -0,0 +1,277 @@
+namespace _19_8
+{
+    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.components = new System.ComponentModel.Container();
+            this.menuStrip1 = new System.Windows.Forms.MenuStrip();
+            this.文件ToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
+            this.新建NToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
+            this.打开OToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
+            this.保存SToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
+            this.toolStripSeparator1 = new System.Windows.Forms.ToolStripSeparator();
+            this.退出XToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
+            this.编辑ToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
+            this.剪切TToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
+            this.复制CToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
+            this.粘贴PToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
+            this.toolStripSeparator2 = new System.Windows.Forms.ToolStripSeparator();
+            this.字体FToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
+            this.帮助HToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
+            this.richTextBox1 = new System.Windows.Forms.RichTextBox();
+            this.contextMenuStrip1 = new System.Windows.Forms.ContextMenuStrip(this.components);
+            this.剪切XToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
+            this.toolStripMenuItem1 = new System.Windows.Forms.ToolStripMenuItem();
+            this.粘贴PToolStripMenuItem1 = new System.Windows.Forms.ToolStripMenuItem();
+            this.toolStripSeparator3 = new System.Windows.Forms.ToolStripSeparator();
+            this.字体FToolStripMenuItem1 = new System.Windows.Forms.ToolStripMenuItem();
+            this.版本ToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
+            this.menuStrip1.SuspendLayout();
+            this.contextMenuStrip1.SuspendLayout();
+            this.SuspendLayout();
+            // 
+            // menuStrip1
+            // 
+            this.menuStrip1.GripMargin = new System.Windows.Forms.Padding(2, 2, 0, 2);
+            this.menuStrip1.ImageScalingSize = new System.Drawing.Size(24, 24);
+            this.menuStrip1.Items.AddRange(new System.Windows.Forms.ToolStripItem[] {
+            this.文件ToolStripMenuItem,
+            this.编辑ToolStripMenuItem,
+            this.帮助HToolStripMenuItem,
+            this.版本ToolStripMenuItem});
+            this.menuStrip1.Location = new System.Drawing.Point(0, 0);
+            this.menuStrip1.Name = "menuStrip1";
+            this.menuStrip1.Size = new System.Drawing.Size(1210, 32);
+            this.menuStrip1.TabIndex = 0;
+            this.menuStrip1.Text = "menuStrip1";
+            // 
+            // 文件ToolStripMenuItem
+            // 
+            this.文件ToolStripMenuItem.DropDownItems.AddRange(new System.Windows.Forms.ToolStripItem[] {
+            this.新建NToolStripMenuItem,
+            this.打开OToolStripMenuItem,
+            this.保存SToolStripMenuItem,
+            this.toolStripSeparator1,
+            this.退出XToolStripMenuItem});
+            this.文件ToolStripMenuItem.Name = "文件ToolStripMenuItem";
+            this.文件ToolStripMenuItem.Size = new System.Drawing.Size(62, 28);
+            this.文件ToolStripMenuItem.Text = "文件";
+            // 
+            // 新建NToolStripMenuItem
+            // 
+            this.新建NToolStripMenuItem.Name = "新建NToolStripMenuItem";
+            this.新建NToolStripMenuItem.Size = new System.Drawing.Size(270, 34);
+            this.新建NToolStripMenuItem.Text = "新建(&N)";
+            this.新建NToolStripMenuItem.Click += new System.EventHandler(this.新建NToolStripMenuItem_Click);
+            // 
+            // 打开OToolStripMenuItem
+            // 
+            this.打开OToolStripMenuItem.Name = "打开OToolStripMenuItem";
+            this.打开OToolStripMenuItem.Size = new System.Drawing.Size(270, 34);
+            this.打开OToolStripMenuItem.Text = "打开(&O)";
+            this.打开OToolStripMenuItem.Click += new System.EventHandler(this.打开OToolStripMenuItem_Click);
+            // 
+            // 保存SToolStripMenuItem
+            // 
+            this.保存SToolStripMenuItem.Name = "保存SToolStripMenuItem";
+            this.保存SToolStripMenuItem.Size = new System.Drawing.Size(270, 34);
+            this.保存SToolStripMenuItem.Text = "保存(&S)";
+            this.保存SToolStripMenuItem.Click += new System.EventHandler(this.保存SToolStripMenuItem_Click);
+            // 
+            // toolStripSeparator1
+            // 
+            this.toolStripSeparator1.Name = "toolStripSeparator1";
+            this.toolStripSeparator1.Size = new System.Drawing.Size(267, 6);
+            // 
+            // 退出XToolStripMenuItem
+            // 
+            this.退出XToolStripMenuItem.Name = "退出XToolStripMenuItem";
+            this.退出XToolStripMenuItem.Size = new System.Drawing.Size(270, 34);
+            this.退出XToolStripMenuItem.Text = "退出(&X)";
+            this.退出XToolStripMenuItem.Click += new System.EventHandler(this.退出XToolStripMenuItem_Click);
+            // 
+            // 编辑ToolStripMenuItem
+            // 
+            this.编辑ToolStripMenuItem.DropDownItems.AddRange(new System.Windows.Forms.ToolStripItem[] {
+            this.剪切TToolStripMenuItem,
+            this.复制CToolStripMenuItem,
+            this.粘贴PToolStripMenuItem,
+            this.toolStripSeparator2,
+            this.字体FToolStripMenuItem});
+            this.编辑ToolStripMenuItem.Name = "编辑ToolStripMenuItem";
+            this.编辑ToolStripMenuItem.Size = new System.Drawing.Size(62, 28);
+            this.编辑ToolStripMenuItem.Text = "编辑";
+            // 
+            // 剪切TToolStripMenuItem
+            // 
+            this.剪切TToolStripMenuItem.Name = "剪切TToolStripMenuItem";
+            this.剪切TToolStripMenuItem.Size = new System.Drawing.Size(270, 34);
+            this.剪切TToolStripMenuItem.Text = "剪切(&T)";
+            this.剪切TToolStripMenuItem.Click += new System.EventHandler(this.剪切TToolStripMenuItem_Click);
+            // 
+            // 复制CToolStripMenuItem
+            // 
+            this.复制CToolStripMenuItem.Name = "复制CToolStripMenuItem";
+            this.复制CToolStripMenuItem.Size = new System.Drawing.Size(270, 34);
+            this.复制CToolStripMenuItem.Text = "复制(&C)";
+            this.复制CToolStripMenuItem.Click += new System.EventHandler(this.复制CToolStripMenuItem_Click);
+            // 
+            // 粘贴PToolStripMenuItem
+            // 
+            this.粘贴PToolStripMenuItem.Name = "粘贴PToolStripMenuItem";
+            this.粘贴PToolStripMenuItem.Size = new System.Drawing.Size(270, 34);
+            this.粘贴PToolStripMenuItem.Text = "粘贴(&P)";
+            this.粘贴PToolStripMenuItem.Click += new System.EventHandler(this.粘贴PToolStripMenuItem_Click);
+            // 
+            // toolStripSeparator2
+            // 
+            this.toolStripSeparator2.Name = "toolStripSeparator2";
+            this.toolStripSeparator2.Size = new System.Drawing.Size(267, 6);
+            // 
+            // 字体FToolStripMenuItem
+            // 
+            this.字体FToolStripMenuItem.Name = "字体FToolStripMenuItem";
+            this.字体FToolStripMenuItem.Size = new System.Drawing.Size(270, 34);
+            this.字体FToolStripMenuItem.Text = "字体(&F)";
+            this.字体FToolStripMenuItem.Click += new System.EventHandler(this.字体FToolStripMenuItem_Click);
+            // 
+            // 帮助HToolStripMenuItem
+            // 
+            this.帮助HToolStripMenuItem.Name = "帮助HToolStripMenuItem";
+            this.帮助HToolStripMenuItem.Size = new System.Drawing.Size(88, 28);
+            this.帮助HToolStripMenuItem.Text = "帮助(&H)";
+            this.帮助HToolStripMenuItem.Click += new System.EventHandler(this.帮助HToolStripMenuItem_Click);
+            // 
+            // richTextBox1
+            // 
+            this.richTextBox1.ContextMenuStrip = this.contextMenuStrip1;
+            this.richTextBox1.Dock = System.Windows.Forms.DockStyle.Fill;
+            this.richTextBox1.Location = new System.Drawing.Point(0, 32);
+            this.richTextBox1.Name = "richTextBox1";
+            this.richTextBox1.Size = new System.Drawing.Size(1210, 703);
+            this.richTextBox1.TabIndex = 1;
+            this.richTextBox1.Text = "";
+            // 
+            // contextMenuStrip1
+            // 
+            this.contextMenuStrip1.ImageScalingSize = new System.Drawing.Size(24, 24);
+            this.contextMenuStrip1.Items.AddRange(new System.Windows.Forms.ToolStripItem[] {
+            this.剪切XToolStripMenuItem,
+            this.toolStripMenuItem1,
+            this.粘贴PToolStripMenuItem1,
+            this.toolStripSeparator3,
+            this.字体FToolStripMenuItem1});
+            this.contextMenuStrip1.Name = "contextMenuStrip1";
+            this.contextMenuStrip1.Size = new System.Drawing.Size(141, 130);
+            // 
+            // 剪切XToolStripMenuItem
+            // 
+            this.剪切XToolStripMenuItem.Name = "剪切XToolStripMenuItem";
+            this.剪切XToolStripMenuItem.Size = new System.Drawing.Size(140, 30);
+            this.剪切XToolStripMenuItem.Text = "剪切(&X)";
+            this.剪切XToolStripMenuItem.Click += new System.EventHandler(this.剪切XToolStripMenuItem_Click);
+            // 
+            // toolStripMenuItem1
+            // 
+            this.toolStripMenuItem1.Name = "toolStripMenuItem1";
+            this.toolStripMenuItem1.Size = new System.Drawing.Size(140, 30);
+            this.toolStripMenuItem1.Text = "复制(&C)";
+            this.toolStripMenuItem1.Click += new System.EventHandler(this.toolStripMenuItem1_Click);
+            // 
+            // 粘贴PToolStripMenuItem1
+            // 
+            this.粘贴PToolStripMenuItem1.Name = "粘贴PToolStripMenuItem1";
+            this.粘贴PToolStripMenuItem1.Size = new System.Drawing.Size(140, 30);
+            this.粘贴PToolStripMenuItem1.Text = "粘贴(&P)";
+            this.粘贴PToolStripMenuItem1.Click += new System.EventHandler(this.粘贴PToolStripMenuItem1_Click);
+            // 
+            // toolStripSeparator3
+            // 
+            this.toolStripSeparator3.Name = "toolStripSeparator3";
+            this.toolStripSeparator3.Size = new System.Drawing.Size(137, 6);
+            // 
+            // 字体FToolStripMenuItem1
+            // 
+            this.字体FToolStripMenuItem1.Name = "字体FToolStripMenuItem1";
+            this.字体FToolStripMenuItem1.Size = new System.Drawing.Size(140, 30);
+            this.字体FToolStripMenuItem1.Text = "字体(&F)";
+            this.字体FToolStripMenuItem1.Click += new System.EventHandler(this.字体FToolStripMenuItem1_Click);
+            // 
+            // 版本ToolStripMenuItem
+            // 
+            this.版本ToolStripMenuItem.Name = "版本ToolStripMenuItem";
+            this.版本ToolStripMenuItem.Size = new System.Drawing.Size(62, 28);
+            this.版本ToolStripMenuItem.Text = "版本";
+            this.版本ToolStripMenuItem.Click += new System.EventHandler(this.版本ToolStripMenuItem_Click);
+            // 
+            // Form1
+            // 
+            this.AutoScaleDimensions = new System.Drawing.SizeF(9F, 18F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.ClientSize = new System.Drawing.Size(1210, 735);
+            this.Controls.Add(this.richTextBox1);
+            this.Controls.Add(this.menuStrip1);
+            this.MainMenuStrip = this.menuStrip1;
+            this.Name = "Form1";
+            this.Text = "Form1";
+            this.SizeChanged += new System.EventHandler(this.Form1_SizeChanged);
+            this.menuStrip1.ResumeLayout(false);
+            this.menuStrip1.PerformLayout();
+            this.contextMenuStrip1.ResumeLayout(false);
+            this.ResumeLayout(false);
+            this.PerformLayout();
+
+        }
+
+        #endregion
+
+        private System.Windows.Forms.MenuStrip menuStrip1;
+        private System.Windows.Forms.ToolStripMenuItem 文件ToolStripMenuItem;
+        private System.Windows.Forms.ToolStripMenuItem 新建NToolStripMenuItem;
+        private System.Windows.Forms.ToolStripMenuItem 打开OToolStripMenuItem;
+        private System.Windows.Forms.ToolStripMenuItem 保存SToolStripMenuItem;
+        private System.Windows.Forms.ToolStripSeparator toolStripSeparator1;
+        private System.Windows.Forms.ToolStripMenuItem 退出XToolStripMenuItem;
+        private System.Windows.Forms.ToolStripMenuItem 编辑ToolStripMenuItem;
+        private System.Windows.Forms.ToolStripMenuItem 剪切TToolStripMenuItem;
+        private System.Windows.Forms.ToolStripMenuItem 复制CToolStripMenuItem;
+        private System.Windows.Forms.ToolStripMenuItem 粘贴PToolStripMenuItem;
+        private System.Windows.Forms.ToolStripSeparator toolStripSeparator2;
+        private System.Windows.Forms.ToolStripMenuItem 字体FToolStripMenuItem;
+        private System.Windows.Forms.ToolStripMenuItem 帮助HToolStripMenuItem;
+        private System.Windows.Forms.RichTextBox richTextBox1;
+        private System.Windows.Forms.ContextMenuStrip contextMenuStrip1;
+        private System.Windows.Forms.ToolStripMenuItem 剪切XToolStripMenuItem;
+        private System.Windows.Forms.ToolStripMenuItem toolStripMenuItem1;
+        private System.Windows.Forms.ToolStripMenuItem 粘贴PToolStripMenuItem1;
+        private System.Windows.Forms.ToolStripSeparator toolStripSeparator3;
+        private System.Windows.Forms.ToolStripMenuItem 字体FToolStripMenuItem1;
+        private System.Windows.Forms.ToolStripMenuItem 版本ToolStripMenuItem;
+    }
+}
+

CS/19_8/Form1.cs

@@ -0,0 +1,130 @@
+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 _19_8
+{
+    public partial class Form1 : Form
+    {
+        public Form1()
+        {
+            InitializeComponent();
+        }
+
+        private void 退出XToolStripMenuItem_Click(object sender, EventArgs e)
+        {
+            this.Close();
+        }
+
+        private void 新建NToolStripMenuItem_Click(object sender, EventArgs e)
+        {
+            richTextBox1.Clear();
+            this.Text = "新建文档";
+        }
+
+        private void 打开OToolStripMenuItem_Click(object sender, EventArgs e)
+        {
+            OpenFileDialog openFileDialog1 = new OpenFileDialog();
+            openFileDialog1.InitialDirectory = @"C:/";
+            openFileDialog1.Filter = "rtf files (*.rtf) | *.rtf";
+            openFileDialog1.FilterIndex = 2;
+            openFileDialog1.RestoreDirectory = true;
+            if (openFileDialog1.ShowDialog() == DialogResult.OK)
+            {
+                richTextBox1.LoadFile(openFileDialog1.FileName);
+            }
+        }
+
+        private void 保存SToolStripMenuItem_Click(object sender, EventArgs e)
+        {
+            SaveFileDialog saveFileDialog1 = new SaveFileDialog();
+            saveFileDialog1.InitialDirectory = @"C:/";
+            saveFileDialog1.Filter = "rtf files (*.rtf) | *.rtf";
+            saveFileDialog1.FilterIndex = 1;
+            saveFileDialog1.RestoreDirectory = true;
+            if (saveFileDialog1.ShowDialog() == DialogResult.OK)
+            {
+                richTextBox1.SaveFile(saveFileDialog1.FileName);
+            }
+        }
+
+        private void 字体FToolStripMenuItem_Click(object sender, EventArgs e)
+        {
+            FontDialog fontDialog1 = new FontDialog();
+            fontDialog1.ShowColor = true;
+            fontDialog1.Font = richTextBox1.SelectionFont;
+            fontDialog1.Color = richTextBox1.SelectionColor;
+            if (fontDialog1.ShowDialog() != DialogResult.Cancel)
+            {
+                richTextBox1.SelectionFont = fontDialog1.Font;
+                richTextBox1.SelectionColor = fontDialog1.Color;
+            }
+        }
+
+        private void 剪切TToolStripMenuItem_Click(object sender, EventArgs e)
+        {
+            richTextBox1.Cut();
+        }
+
+        private void 复制CToolStripMenuItem_Click(object sender, EventArgs e)
+        {
+            richTextBox1.Copy();
+        }
+
+        private void 粘贴PToolStripMenuItem_Click(object sender, EventArgs e)
+        {
+            richTextBox1.Paste();
+        }
+
+        private void 帮助HToolStripMenuItem_Click(object sender, EventArgs e)
+        {
+            MessageBox.Show("11111111");
+        }
+
+        private void Form1_SizeChanged(object sender, EventArgs e)
+        {
+            richTextBox1.Width = this.Width - 35;
+            richTextBox1.Height = this.Height - 70;
+        }
+
+        private void 剪切XToolStripMenuItem_Click(object sender, EventArgs e)
+        {
+            richTextBox1.Cut();
+        }
+
+        private void toolStripMenuItem1_Click(object sender, EventArgs e)
+        {
+            richTextBox1.Copy();
+        }
+
+        private void 粘贴PToolStripMenuItem1_Click(object sender, EventArgs e)
+        {
+            richTextBox1.Paste();
+        }
+
+        private void 字体FToolStripMenuItem1_Click(object sender, EventArgs e)
+        {
+            FontDialog fontDialog1 = new FontDialog();
+            fontDialog1.ShowColor = true;
+            fontDialog1.Font = richTextBox1.SelectionFont;
+            fontDialog1.Color = richTextBox1.SelectionColor;
+            if (fontDialog1.ShowDialog() != DialogResult.Cancel)
+            {
+                richTextBox1.SelectionFont = fontDialog1.Font;
+                richTextBox1.SelectionColor = fontDialog1.Color;
+            }
+        }
+
+        private void 版本ToolStripMenuItem_Click(object sender, EventArgs e)
+        {
+            AboutDialog Form2 = new AboutDialog();
+            Form2.ShowDialog();
+        }
+    }
+}