模拟4.0 的paralell (带参)

using System;using System.Threading;public class MyThread{    public double Diameter = 10;    public double Result = 0;    public MyThread(int Diameter)    {        this.Diameter = Diameter;    }    public void Calculate()    {        Result = Diameter * Math.PI;        Console.WriteLine("Calculate End, Diameter is {0},Result is {1}", this.Diameter, Result);    }}public class Test{    public static void Main(String[] args)    {        Thread.CurrentThread.Name = "主线程";        Console.WriteLine(string.Format("当前线程：{0} 开始", Thread.CurrentThread.Name));        Thread[] threadArr = new Thread[30];        for (int i = 1; i <= threadArr.Length; i++)        {            MyThread t = new MyThread(i);            ThreadStart threadStart = new ThreadStart(t.Calculate);            threadArr[i - 1] = new Thread(threadStart);            threadArr[i - 1].Name = i.ToString();            threadArr[i - 1].Start();            //threadArr[i-1].Join();    //写在此处会让30个线程顺序执行而失去意义          }        foreach (Thread th in threadArr)            th.Join();        //中止线程，必不可少。        foreach (Thread th in threadArr)            th.Abort();        Console.WriteLine(string.Format("当前线程：{0} 结束", Thread.CurrentThread.Name));        Console.Read();      }}