Initial commit

2025-10-24 17:19:46 +08:00
commit acc0c9e220
155 changed files with 77369 additions and 0 deletions
@@ -0,0 +1,10 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>
@@ -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_3_4", "C_Sharp_3_4.csproj", "{6EC9575D-0EE8-4FEA-AD71-E573233BEEF4}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{6EC9575D-0EE8-4FEA-AD71-E573233BEEF4}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{6EC9575D-0EE8-4FEA-AD71-E573233BEEF4}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{6EC9575D-0EE8-4FEA-AD71-E573233BEEF4}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{6EC9575D-0EE8-4FEA-AD71-E573233BEEF4}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {8E01B379-AB7D-4A69-8843-55F63765792C}
+	EndGlobalSection
+EndGlobal
@@ -0,0 +1,20 @@
+using System;
+namespace C_Sharp_3_4
+{
+    public class Program
+    {
+        static void Main(string[] args)
+        {
+            double n = 1, t = 1, pi = 0, s = 1;
+            while (Math.Abs(t) >= Math.Pow(10,-6))
+            {
+                pi += t;
+                n += 2;
+                s = -s;
+                t = s / n;
+            }
+            pi *= 4;
+            Console.WriteLine("pi={0}" ,pi);
+        }
+    }
+}