C# 线程(Threading)编程 实例

手头一个项目中,使用到多线程例, 分配任务, 处理任务,显示任务状态,等.

下面的代码就是一个样例. 供大家参考.

1. /* By shelly<mrshelly at hotmail.com> */
2. using System;
3. using System.Threading;
4. using System.Collections;
6. namespace shareThread{
7.     class MyThread{
8.         static Queue q1=new Queue();
9.         static int b=0;
10.         int thState = 3;
12.         public void getTask(){
13.             while((this.thState & 1) == 1){
14.                 lock(this){
15.                     ++b;
16.                     q1.Enqueue(b);
17.                     System.Console.WriteLine("getTask:{0}--------------",b);
18.                 }
19.                 Thread.Sleep(200);
20.             }
21.         }
23.         public void doTask(){
24.             int curB = 0;
25.             while((this.thState & 2) == 2){
26.                 if(q1.Count >0){
27.                     lock(this) curB = (int)q1.Dequeue();
28.                     System.Console.WriteLine("doTask:{0}---{1}-----------",curB,q1.Count);
29.                 }
30.                 if(q1.Count >5){
31.                     Thread.Sleep(100);
32.                 }else{
33.                     Thread.Sleep(5000);
34.                 }
35.             }
36.         }
38.         public void showQueue(){
39.             while(true){
40.                 System.Console.Write(" {0} -->", q1.Count);
41.                 Thread.Sleep(1000);
42.             }
43.         }
45.         public void setState(int s){
46.             lock(this){
47.                 thState = s;
48.             }
49.         }
51.     }
53.     class ClassMain{
54.         [STAThread]
55.         static void Main(string[] args){
56.             MyThread myc;
57.             Thread thDoTask1, thDoTask2, thDoTask3, thGetTask, thShowTask;
58.             myc=new MyThread();
60.             thDoTask1 = new Thread(new ThreadStart(myc.doTask));
61.             thDoTask1.Start();
62.             thDoTask2 = new Thread(new ThreadStart(myc.doTask));
63.             thDoTask2.Start();
64.             thDoTask3 = new Thread(new ThreadStart(myc.doTask));
65.             thDoTask3.Start();
67.             thGetTask = new Thread(new ThreadStart(myc.getTask));
68.             thGetTask.Start();
70.             thShowTask = new Thread(new ThreadStart(myc.showQueue));
71.             thShowTask.Start();
72.             Thread.Sleep(20000);//主线程睡眠
74.             myc.setState(0);
75.             System.Console.Read();//等待完成,dos窗口不会马上关闭了.
76.         }
77.     }
78. }