代码语言：javascript复制
1 using System;
2 using System.Collections.Generic;
3 using System.Linq;
4 using System.Text;
5 using System.Threading;
6
7 namespace ConsoleApplication9
8 {
9 class Program
10 {
11 static void Main(string[] args)
12 {
13
14
15 // 异步调用
16 // 将需传递给异步执行方法数据及委托传递给帮助器类
17 ThreadWithState tws = new ThreadWithState(
18 "This report displays the number {0}.",
19 42,
20 new ExampleCallback(ResultCallback)
21 );
22 Thread t = new Thread(new ThreadStart(tws.ThreadProc));
23 t.Start();
24 Console.ReadKey();
25 }
26
27 static void ResultCallback(int i)
28 {
29 Console.Write("No." i "n");
30 }
31 }
32 }
33
34 // 包装异步方法的委托
35 public delegate void ExampleCallback(int lineCount);
36 // 帮助器类
37
38 public class ThreadWithState
39 {
40 private string boilerplate;
41 private int value;
42 private ExampleCallback callback;
43
44 public ThreadWithState(string text, int number,
45 ExampleCallback callbackDelegate)
46
47 {
48 boilerplate = text;
49 value = number;
50 callback = callbackDelegate;
51 }
52
53 public void ThreadProc()
54 {
55 Console.WriteLine(boilerplate, value);
56 // 异步执行完时调用回调
57 if (callback != null)
58 callback(1);
59 }
60 } 运行结果：
摘自：http://www.cnblogs.com/heyuquan/archive/2012/12/16/2820775.html
