using System;
using System.Threading;namespace ConsoleApp1
{public delegate string MethodCaller(string name);//定义个代理 class Program{static void CountNumbers(){int _iterations = 3;for (int i = 1; i <= _iterations; i++){Thread.Sleep(TimeSpan.FromSeconds(0.5));Console.WriteLine("{0} prints {1}", Thread.CurrentThread.Name, i);}}static void Count(object iterations){CountNumbers((int)iterations);}static void CountNumbers(int iterations){for (int i = 1; i <= iterations; i++){Thread.Sleep(TimeSpan.FromSeconds(0.5));Console.WriteLine("{0} prints {1}", Thread.CurrentThread.Name, i);}}static void PrintNumber(int number){Console.WriteLine(number);}static string GetName(string name)    // 函数
        {int _iterations = 5;for (int i = 1; i <= _iterations; i++){Thread.Sleep(TimeSpan.FromSeconds(0.5));Console.WriteLine("{0} prints {1}", Thread.CurrentThread.Name, i);}return name;}static void Main(string[] args){//无参数的调用var threadOne = new Thread(CountNumbers);threadOne.Name = "ThreadOne";threadOne.Start();threadOne.Join();Console.WriteLine("--------------------------");//带参数的调用方式一var threadTwo = new Thread(Count);threadTwo.Name = "ThreadTwo";threadTwo.Start(3);threadTwo.Join();Console.WriteLine("--------------------------");//带参数的调用方式二var threadThree = new Thread(() => CountNumbers(4));threadThree.Name = "ThreadThree";threadThree.Start();threadThree.Join();Console.WriteLine("--------------------------");//注意在多个lambda表达式中使用香港的变量,它们会共享该变量 这里两个线程的参数都是20int i = 10;var threadFour = new Thread(() => PrintNumber(i));i = 20;var threadFive = new Thread(() => PrintNumber(i));threadFour.Start();threadFive.Start();Console.WriteLine("--------------------------");MethodCaller mc = new MethodCaller(GetName);string name = "my name";//输入参数 IAsyncResult result = mc.BeginInvoke(name, null, null);Console.WriteLine("继续主线程的业务");string myname = mc.EndInvoke(result);//用于接收返回值 Console.WriteLine(string.Format("result={0}", myname));}}
}

using System;
using System.Threading;namespace ConsoleApp1
{class Program{static void Main(string[] args){Console.WriteLine("Starting program...");Thread t = new Thread(PrintNumbersWithDelay);t.Start();t.Join();Console.WriteLine("Thread completed");}static void PrintNumbersWithDelay(){Console.WriteLine("Starting...");for (int i = 1; i <= 5; i++){Thread.Sleep(TimeSpan.FromSeconds(1));Console.WriteLine(i);}}}
}

using System;
using System.Threading;namespace ConsoleApp1
{class Program{static void Main(string[] args){var t = new Thread(FaultyThread);t.Start();t.Join();//try//{//    t = new Thread(BadFaultyThread);//    t.Start();//}//catch (Exception ex)//{//    //这里捕获不了线程中的异常//    Console.WriteLine("We won't get here!");//}
        }static void BadFaultyThread(){Console.WriteLine("Starting a Badfaulty thread...");Thread.Sleep(TimeSpan.FromSeconds(2));throw new Exception("Boom!");}static void FaultyThread(){try{Console.WriteLine("Starting a faulty thread...");Thread.Sleep(TimeSpan.FromSeconds(1));throw new Exception("Boom!");}catch (Exception ex){Console.WriteLine("Exception handled: {0}", ex.Message);}}}
}

using System;
using System.Diagnostics;
using System.Threading;namespace ConsoleApp1
{class Program{static void Main(string[] args){Console.WriteLine("Current thread priority: {0}", Thread.CurrentThread.Priority);Console.WriteLine("Running on all cores available");RunThreads();Thread.Sleep(TimeSpan.FromSeconds(2));Console.WriteLine("Running on a single core");Process.GetCurrentProcess().ProcessorAffinity = new IntPtr(1);RunThreads();Console.ReadLine();}static void RunThreads(){var sample = new ThreadSample();var threadOne = new Thread(sample.CountNumbers);threadOne.Name = "ThreadOne";var threadTwo = new Thread(sample.CountNumbers);threadTwo.Name = "ThreadTwo";threadOne.Priority = ThreadPriority.Lowest;threadTwo.Priority = ThreadPriority.Highest;threadOne.Start();threadTwo.Start();Thread.Sleep(TimeSpan.FromSeconds(2));sample.Stop();}class ThreadSample{private bool _isStopped = false;public void Stop(){_isStopped = true;}public void CountNumbers(){long counter = 0;while (!_isStopped){counter++;}Console.WriteLine("{0} with {1,11} priority " +"has a count = {2,13}", Thread.CurrentThread.Name,Thread.CurrentThread.Priority,counter.ToString("N0"));}}}
}