一个C#实现异步调用的简单范例代码

/*
 * User: MXi4oyu
 * Email:798033502@qq.com
 * Date: 2013-7-18
 * Time: 19:50
 * 
 */
using System;
using System.Threading;
using System.Runtime.Remoting.Messaging;

namespace Test
{
    class Program
    {
        //定义一个委托
        public delegate  int BinaryOp(int x,int y);
        public static void Main(string[] args)
        {
            //输出执行Main方法的线程ID
            Console.WriteLine("Main() invoked on thread{0}",Thread.CurrentThread.ManagedThreadId);
            //BinaryOp 委托指向Add方法
            BinaryOp b = new Program.BinaryOp(Add);
            IAsyncResult iftAR = b.BeginInvoke(10,10,new AsyncCallback(AddComplete),null);
            Console.WriteLine("不等它，咱继续！");
            Console.ReadKey();
            
        }
        static void AddComplete(IAsyncResult itfAR)
        {
            Console.WriteLine("Addcomplete invoked on thread{0}",Thread.CurrentThread.ManagedThreadId);
            Console.WriteLine("your addtion is complete");
            //得到结果
            AsyncResult ar = (AsyncResult)itfAR;
            BinaryOp b = (BinaryOp)ar.AsyncDelegate;
            Console.WriteLine("10+10={0}",b.EndInvoke(itfAR));
            
        }
        static int Add(int x,int y)
        {
            Console.WriteLine("Add () invoked on thread{0}",Thread.CurrentThread.ManagedThreadId);
            Thread.Sleep(5000);
            return x+y;
        }
    }
}