以下是全部的代码
本实例中有2个betton控件， 2个label控件,一个时钟控件
using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; using System.Threading; namespace threadtest { public partial class Form1 : Form { int i; private Thread thread1;//定义线程 delegate void set_Text(string s);//定义委托 set_Text Set_Text; //定义委托 public Form1() { InitializeComponent(); } private void Form1_Load(object sender, EventArgs e) { label1.Text = "0"; label2.Text = "0"; Set_Text = new set_Text(set_lableText); //实例化 } private void button1_Click(object sender, EventArgs e) { thread1 = new Thread(new ThreadStart(run)); thread1.Start(); } private void run() { for (int i = 0; i < 101; i++) { label1.Invoke(Set_Text, new object[] { i.ToString() }); //通过调用委托，来改变lable1的值 Thread.Sleep(1000); //线程休眠时间，单位是ms } } private void set_lableText(string s) { label1.Text = s; } private void timer1_Tick(object sender, EventArgs e) { i++; if (i > 100) { timer1.Stop(); } label2.Text = i.ToString(); } private void Form1_FormClosing(object sender, FormClosingEventArgs e) { if (thread1.IsAlive) //判断thread1是否存在，不能撤消一个不存在的线程，否则会引发异常 { thread1.Abort(); //撤消thread1 } } private void button2_Click(object sender, EventArgs e) { timer1.Start(); } } } |
