多线程 - C#

public class MyThread
//传参
　　{

　　public double Diameter=10;

　　public double Result=0;

　　public MyThread(int Diameter)

　　{

　　this.Diameter = Diameter;

　　}

　　public void Calculate()

　　{

　　Console.WriteLine( "Calculate Start");

　　Thread.Sleep(2000);

　　Result = Diameter*Math.PI;;

　　Console.WriteLine("Calculate End, Diameter is ,Result is " ,this.Diameter, Result);

　　}

　　}

　　MyThread t=new MyThread(5.0);

　　ThreadStart threadStart=new ThreadStart(t.Calculate)

　　Thread thread=new Thread(threadStart);

　　thread.Start();
}

//不传参
using System;  
using System.Collections.Generic;  
using System.Text;  
using System.Threading;  
namespace 线程练习  
{  
    class Program  
    {  
        static void Main(string[] args)  
        {  
            Console.WriteLine("开始一个新的线程，名为次线程");  
            Thread t = new Thread(new ThreadStart(ThreadProc));  
            t.Start();  
            for (int i = 0; i < 4; i++)  
            {  
                Console.WriteLine("主线程：" + i);  
                Thread.Sleep(1000);  
            }  
            Console.WriteLine("调用Join函数等待次线程结束");  
            //当次线程执行完毕后,Join阻塞调用线程，直到某个线程终止为止，本例为次线程  
            t.Join();  
            Console.WriteLine("线程执行完毕");  
        }  
        public static void ThreadProc()  
        {  
            for (int i = 0; i < 10; i++)  
            {  
                Console.WriteLine("ThreadPorc:{0}", i);  
                Thread.Sleep(1000);//将当前进程阻塞指定的毫秒数  
            }  
  
  
        }  
    }  
}