.NET异步委托

可以使用异步方法来执行委托，beginInvoke，endInvoke
用异步自己开辟线程，可能会造成线程阻塞(出现了程序不运行状态，应该是线程阻塞)
OBJECT类型用于传递任何想要的数据类型，它可以通过IAsyncResult的AsyncState属性获得。

注意事项：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.Remoting.Messaging;
using System.Text;
using System.Threading;
using System.Threading.Tasks;

namespace ConsoleTest
{
    class AsyncDelegate
    {
        public delegate int Adddelegate(int x, int y);
        static void Main(string[] args)
        {
            TimeSpan ts1 = new TimeSpan(DateTime.Now.Ticks); //获取当前时间的刻度数  
            System.Console.WriteLine("线程开始了begintime:{0}-------------------
",System.DateTime.Now.ToString("yyyy-MM-dd hh:mm:ss ffff"));
            Thread.CurrentThread.Name = "Main Thread";
            AsyncDelegate ad = new AsyncDelegate();
            //int sd = ad.Add(4, 5);
            Adddelegate adl = new Adddelegate(ad.Add);
           // IAsyncResult asyncResult = adl.BeginInvoke(7, 8, null, null);
            AsyncCallback asynccll = new AsyncCallback(ad.AsyncAdd);//AsyncCallback其实也是一种委托，接受的参数为签名(IAsyncCallback ar)
            Object ob = (object)"我是传递的数据";
            adl.BeginInvoke(4,6, asynccll,ob);

            for (int i = 0; i < 5; i++)
            {
                Thread.Sleep(TimeSpan.FromSeconds(i));
                System.Console.WriteLine("线程名：{0}，等待时间{1}", Thread.CurrentThread.Name, i);
            }
           // int sd = adl.EndInvoke(asyncResult);
            System.Console.WriteLine("
想退出按任意键！！！");
           // System.Console.WriteLine("返回值是{0}", sd);
            TimeSpan ts2 = new TimeSpan(DateTime.Now.Ticks);
            TimeSpan ts = ts2.Subtract(ts1).Duration(); //时间差的绝对值  
  String spanTime = ts.Hours.ToString() + "小时" + ts.Minutes.ToString() + "分" + ts.Seconds.ToString() + "秒"; //以X小时X分X秒的格式现实执行时间 
            System.Console.WriteLine("线程开始了endtime:{0}-----
{1}", System.DateTime.Now.ToString("yyyy-MM-dd hh:mm:ss ffff"),spanTime);

        }
        public int Add(int x, int y)
        {
            if (Thread.CurrentThread.IsThreadPoolThread)
            {
                //给开辟的线程池中的子线程设置名称
                Thread.CurrentThread.Name = "HAHHA";
            }
            System.Console.WriteLine("方法开始了");
            for (int i = 0; i <= 2; i++)
            {
                Thread.Sleep(TimeSpan.FromSeconds(i));
                System.Console.WriteLine("线程名：{0}，等待时间{1}", Thread.CurrentThread.Name, i);
            }
            System.Console.WriteLine("方法执行完毕");
            return x + y;
        }
        public void AsyncAdd(IAsyncResult ar)
        {
            AsyncResult acresult = (AsyncResult)ar;
            Adddelegate del = (Adddelegate)acresult.AsyncDelegate;
            string data = acresult.AsyncState.ToString();
            int stn = del.EndInvoke(acresult);
            System.Console.WriteLine("线程名称：{0}，返回值:{1},传递的数据{2}",Thread.CurrentThread.Name,stn,data);

        }
    }
}