create thread

MultiThreadingStudy/AboutThread/App.config

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+<?xml version="1.0" encoding="utf-8" ?>
+<configuration>
+    <startup> 
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.8.1" />
+    </startup>
+</configuration>

MultiThreadingStudy/AboutThread/CreateThread.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace CreateThread
+{
+	internal class CreateThread
+	{
+		public static void Create()
+		{
+			// Do in new thread
+			Thread t1 = new Thread(new ThreadStart(Run));
+			t1.Start();
+
+			// Do in main thread
+			Run();
+		}
+
+		public static void CreateManyWay()
+		{
+			// Create ThreadStart delegate
+			Thread t1 = new Thread(new ThreadStart(Run));
+			t1.Start();
+
+			// Infer by method and create delgate
+			Thread t2 = new Thread(Run);
+			t2.Start();
+
+			// Use anonymous method
+			Thread t3 = new Thread(delegate ()
+			{
+				Run();
+			});
+			t3.Start();
+
+			// Use lambda expression
+			Thread t4 = new Thread(() => Run());
+			t4.Start();
+
+			// Short
+			new Thread(() => Run()).Start();
+		}
+
+		public static void CreateParameterized()
+		{
+			Thread t1 = new Thread(new ParameterizedThreadStart(Calc));
+			t1.Start(10.0);
+
+			Thread t2 = new Thread(() => Sum(10, 20, 30));
+			t2.Start();
+		}
+
+		public static void CreateOtherClassMethod()
+		{
+			OuterClass obj = new OuterClass();
+			Thread t = new Thread(obj.Run);
+			t.Start();
+		}
+
+		public static void CreateBackgroundThread()
+		{
+			Thread t = new Thread(new ThreadStart(EndlessRun));
+			t.IsBackground = true;
+			t.Start();
+		}
+
+		public static void CreateForegroundThread()
+		{
+			Thread t = new Thread(new ThreadStart(EndlessRun));
+			t.IsBackground = false; // default
+			t.Start();
+		}
+
+		private static void Run()
+		{
+			Console.WriteLine($"Thread#{Thread.CurrentThread.ManagedThreadId}: Start");
+			// Do something
+			Thread.Sleep(3000);
+			Console.WriteLine($"Thread#{Thread.CurrentThread.ManagedThreadId}: Finish");
+		}
+
+		private static void Calc(object radius)
+		{
+			double r = (double)radius;
+			double area = r * r * Math.PI;
+			Console.WriteLine($"r={radius}, area={area}");
+		}
+
+		private static void Sum(int d1, int d2, int d3)
+		{
+			int sum = d1 + d2 + d3;
+			Console.WriteLine($"sum={sum}");
+		}
+
+		private static void EndlessRun()
+		{
+			int i = 0;
+			while (true)
+			{
+				Console.WriteLine($"running... ({++i})");
+				Thread.Sleep(1000);
+			}
+		}
+	}
+
+	internal class OuterClass
+	{
+		public void Run()
+		{
+			Console.WriteLine("OuterClass.Run");
+		}
+	}
+}

MultiThreadingStudy/AboutThread/CreateThread.csproj

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+<?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>{8724C07D-B729-4CEC-AA91-BEEA9C96409C}</ProjectGuid>
+    <OutputType>Exe</OutputType>
+    <RootNamespace>AboutThread</RootNamespace>
+    <AssemblyName>AboutThread</AssemblyName>
+    <TargetFrameworkVersion>v4.8.1</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.Net.Http" />
+    <Reference Include="System.Xml" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="CreateThread.cs" />
+    <Compile Include="Program.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="App.config" />
+  </ItemGroup>
+  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+</Project>

MultiThreadingStudy/AboutThread/Program.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace CreateThread
+{
+	internal class Program
+	{
+		static void Main(string[] args)
+		{
+			//CreateThread.Create();
+
+			//CreateThread.CreateManyWay();
+
+			//CreateThread.CreateOtherClassMethod();
+
+			//CreateThread.CreateParameterized();
+
+			//CreateThread.CreateBackgroundThread();
+
+			CreateThread.CreateForegroundThread();
+
+			//Console.ReadKey();
+		}
+	}
+}

MultiThreadingStudy/AboutThread/Properties/AssemblyInfo.cs

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+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+// 어셈블리에 대한 일반 정보는 다음 특성 집합을 통해 
+// 제어됩니다. 어셈블리와 관련된 정보를 수정하려면
+// 이러한 특성 값을 변경하세요.
+[assembly: AssemblyTitle("AboutThread")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("AboutThread")]
+[assembly: AssemblyCopyright("Copyright ©  2022")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// ComVisible을 false로 설정하면 이 어셈블리의 형식이 COM 구성 요소에 
+// 표시되지 않습니다. COM에서 이 어셈블리의 형식에 액세스하려면
+// 해당 형식에 대해 ComVisible 특성을 true로 설정하세요.
+[assembly: ComVisible(false)]
+
+// 이 프로젝트가 COM에 노출되는 경우 다음 GUID는 typelib의 ID를 나타냅니다.
+[assembly: Guid("8724c07d-b729-4cec-aa91-beea9c96409c")]
+
+// 어셈블리의 버전 정보는 다음 네 가지 값으로 구성됩니다.
+//
+//      주 버전
+//      부 버전 
+//      빌드 번호
+//      수정 버전
+//
+// 모든 값을 지정하거나 아래와 같이 '*'를 사용하여 빌드 번호 및 수정 번호를
+// 기본값으로 할 수 있습니다.
+// [assembly: AssemblyVersion("1.0.*")]
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]

MultiThreadingStudy/MultiThreadingStudy.sln

@@ -0,0 +1,25 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.3.32929.385
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "CreateThread", "AboutThread\CreateThread.csproj", "{8724C07D-B729-4CEC-AA91-BEEA9C96409C}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{8724C07D-B729-4CEC-AA91-BEEA9C96409C}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{8724C07D-B729-4CEC-AA91-BEEA9C96409C}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{8724C07D-B729-4CEC-AA91-BEEA9C96409C}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{8724C07D-B729-4CEC-AA91-BEEA9C96409C}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {ABBF91D6-78C7-423A-9442-2C968B7061DA}
+	EndGlobalSection
+EndGlobal