.NET：异步调用长时间工作的方法（采用lambda表达式封装回调函数）

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

namespace AsyncSample
{
class Program
{
static void Main(string[] args)
{
Action action = new Action(LongworktimeMethod);
Console.WriteLine("开始回调");
action.BeginInvoke(ar => { Console.WriteLine("回调结束"); }, null);
//这里开始异步调用。 采用lambda表达式可以极大地简化编码

//一旦发起了异步调用，主程序即可继续其他的工作，而无法等待调用返回
Console.WriteLine("其他工作");
Console.Read();
}

static void LongworktimeMethod() {
System.Threading.Thread.Sleep(10000);
Console.WriteLine("方法调用结束");
}
}
}

.csharpcode, .csharpcode pre
{
font-size: small;
color: black;
font-family: consolas, "Courier New", courier, monospace;
background-color: #ffffff;
/*white-space: pre;*/
}
.csharpcode pre { margin: 0em; }
.csharpcode .rem { color: #008000; }
.csharpcode .kwrd { color: #0000ff; }
.csharpcode .str { color: #006080; }
.csharpcode .op { color: #0000c0; }
.csharpcode .preproc { color: #cc6633; }
.csharpcode .asp { background-color: #ffff00; }
.csharpcode .html { color: #800000; }
.csharpcode .attr { color: #ff0000; }
.csharpcode .alt
{
background-color: #f4f4f4;
width: 100%;
margin: 0em;
}
.csharpcode .lnum { color: #606060; }