Initial commit

2025-10-24 17:19:46 +08:00
commit acc0c9e220
155 changed files with 77369 additions and 0 deletions
@@ -0,0 +1,11 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net8.0</TargetFramework>
+    <RootNamespace>C_Sharp_1_3</RootNamespace>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>
@@ -0,0 +1,25 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.14.36616.10 d17.14
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "C Sharp 1_3", "C Sharp 1_3.csproj", "{F4C49F99-3163-4F59-A9C9-DE459FA38244}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{F4C49F99-3163-4F59-A9C9-DE459FA38244}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{F4C49F99-3163-4F59-A9C9-DE459FA38244}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{F4C49F99-3163-4F59-A9C9-DE459FA38244}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{F4C49F99-3163-4F59-A9C9-DE459FA38244}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {ED18AC2B-9EF6-468F-ACCB-466A5CF892F1}
+	EndGlobalSection
+EndGlobal
@@ -0,0 +1,47 @@
+using System;
+using static System.Math;
+namespace C_Sharp_1_3
+{
+    public class Program
+    {
+        static void Main()
+        {
+            Console.WriteLine("请输入变量x的值：");
+            double x = double.Parse(Console.ReadLine());
+            double y;
+            // 单句单分支方法
+            y = Log(-5 * x) + 6 * Sqrt(Abs(x) + Exp(4)) - Pow((x + 1), 3);
+            if (x>=0)
+            {
+                y = (Pow(x, 2) - 3 * x) / (Pow(x, 2) + 1) + 2 * PI + Sin(x);
+            }
+            Console.WriteLine("方法一，x={0},y={1}",x,y);
+
+            // 两句单分支方法
+            if (x >= 0)
+            {
+                y = (Pow(x, 2) - 3 * x) / (Pow(x, 2) + 1) + 2 * PI + Sin(x);
+            }
+            if(x < 0)
+            {
+                y = Log(-5 * x) + 6 * Sqrt(Abs(x) + Exp(4)) - Pow((x + 1), 3);
+            }
+            Console.WriteLine("方法二，x={0},y={1}", x,y);
+
+            // 双分支方法
+            if (x >= 0)
+            {
+                y = (Pow(x, 2) - 3 * x) / (Pow(x, 2) + 1) + 2 * PI + Sin(x);
+            }
+            else
+            {
+                y = Log(-5 * x) + 6 * Sqrt(Abs(x) + Exp(4)) - Pow((x + 1), 3);
+            }
+            Console.WriteLine("方法三，x={0},y={1}",x,y);
+
+            // 条件运算符方法
+            y = (x >= 0) ? (Pow(x, 2) - 3 * x) / (Pow(x, 2) + 1) + 2 * PI + Sin(x) : Log(-5 * x) + 6 * Sqrt(Abs(x) + Exp(4)) - Pow((x + 1), 3);
+            Console.WriteLine("方法四，x={0},y={1}",x,y);
+        }
+    }
+}