异步编程中使用帮助类来实现Thread.Start()的示例

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;

namespace ConsoleApplication9
{
    class Program
    {
        static void Main(string[] args)
        {


            // 异步调用 
            // 将需传递给异步执行方法数据及委托传递给帮助器类 
            ThreadWithState tws = new ThreadWithState(
               "This report displays the number {0}.",
               42,
               new ExampleCallback(ResultCallback)
            );
            Thread t = new Thread(new ThreadStart(tws.ThreadProc));
            t.Start();
            Console.ReadKey();
        }

        static void ResultCallback(int i)
        {
            Console.Write("No." + i + "
");
        }
    }
}

// 包装异步方法的委托 
public delegate void ExampleCallback(int lineCount); 
// 帮助器类 
  
public class ThreadWithState 
{ 
    private string boilerplate; 
    private int value; 
    private ExampleCallback callback; 
   
    public ThreadWithState(string text, int number, 
        ExampleCallback callbackDelegate) 
  
    { 
        boilerplate = text; 
        value = number; 
        callback = callbackDelegate; 
    } 
  
    public void ThreadProc() 
    { 
        Console.WriteLine(boilerplate, value); 
        // 异步执行完时调用回调 
        if (callback != null) 
            callback(1); 
    } 
} 

运行结果：

摘自：http://www.cnblogs.com/heyuquan/archive/2012/12/16/2820775.html