C# 双线程

转载：http://hi.baidu.com/tokc/blog/item/14e2366c6c321cf743169487.html

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Threading; //添加系统类库

namespace testThread
{
    public partial class Form1 : Form
    {
        Thread thread1 ; //创建线程thread1
        Thread thread2 ; //创建线程thread2
        int min = 0;
        int max = 1000;

        public Form1()
        {
            InitializeComponent();
            thread1 = new Thread(t1); //初始化线程thread1并使用自定义方法t1
            thread2 = new Thread(t2); //初始化线程thread2并使用自定义方法t2         
        }

        private void buttonStart_Click(object sender, EventArgs e) //开始按钮
        {
            string stringState = thread1.ThreadState.ToString();

            switch (stringState)
            {
                case "Unstarted": //第一次启动
                    try
                    {
                        thread1.Start();
                        thread2.Start();
                    }
                    catch (Exception ex)
                    {
                        MessageBox.Show(ex.Message);
                    }
                    break;
                case "Running":    //正在运行,此状态删掉亦可
                    break;
                case "Suspended": //挂起则恢复运行
                    thread1.Resume();
                    thread2.Resume();
                    break;
                case "Stopped": //线程已停止则重新启动
                    thread1 = new Thread(t1);
                    thread2 = new Thread(t2);
                    thread1.Start();
                    thread2.Start();
                    break;
                default: //什么都不做
                    break;
            }
        }

        private void buttonSuspend_Click(object sender, EventArgs e) //挂起按钮
        {
            try //挂起线程
            {
                thread1.Suspend();
                thread2.Suspend();
            }
            catch(Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
        }

        private void button3_Click(object sender, EventArgs e) //关闭按钮
        {
            this.Close(); // 关闭窗口
        }

        public void t1()
        {
            progressBar1.Minimum = min; //进程滚动条1最小值
            progressBar1.Maximum = max; //进程滚动条2最大值
            for (int i = min; i < max; i++)
            {
                label1.Text = i.ToString(); //把i值显示在label1控件上
                progressBar1.Value = i; //把i值赋予滚动条当前值
                Thread.Sleep(10); //线程休息10毫秒
            }
        }

        public void t2() //看t1
        {
            progressBar2.Minimum = min;
            progressBar2.Maximum = max;
            for (int i = min; i < max; i++)
            {
                label2.Text = i.ToString();
                progressBar2.Value = i;
                Thread.Sleep(10);
            }
        }        
    }
}