Thread线程类使用随笔

 1 using System;
 2 using System.Collections.Generic;
 3 using System.ComponentModel;
 4 using System.Data;
 5 using System.Drawing;
 6 using System.Linq;
 7 using System.Text;
 8 using System.Threading;
 9 using System.Threading.Tasks;
10 using System.Windows.Forms;
11 
12 namespace test2
13 {
14     public partial class Form1 : Form
15     {
16         public Form1()
17         {
18             InitializeComponent();
19         }
20         Thread th;//实例一个线程
21         private void button1_Click(object sender, EventArgs e)
22         {
23              th = new Thread(test);
24             th.IsBackground=true ;//后台线程，这样在进程结束后，线程自动结束
25             th.Start();
26         }
27         private void test()
28         {
29             for (int i = 0; i < 10000; i++)
30             {
31                 textBox1.Text = i.ToString();
32             }
33         }
34 
35         private void Form1_Load(object sender, EventArgs e)
36         {
37             Control.CheckForIllegalCrossThreadCalls = false;
38         }
39 
40         private void Form1_FormClosing(object sender, FormClosingEventArgs e)
41         {
42             if(th!=null)//如果线程在窗口关闭时还没有结束，则终止线程
43             {
44                 th.Abort();
45             }
46         }
47 
48 
49     }
50 }