c# 简单试验控制线程的暂停和继续_c# thread 暂停-优快云博客

该代码示例展示了如何在C#的WindowsForms应用程序中使用线程进行并发操作。两个线程分别更新label1和label2的文本，通过SynchronizationContext保证UI线程安全。按钮用于挂起和恢复线程1和线程2的操作。

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1.运行效果

2.代码

using System;
using System.Threading;
using System.Windows.Forms;

namespace 线程试验
{
    public partial class Form1 : Form
    {
        int index1 = 0;
        int index2 = 0;
        SynchronizationContext SyncContext = null;
        Thread thread1;
        Thread thread2;
        public Form1()
        {
            InitializeComponent();
            SyncContext = SynchronizationContext.Current;
            thread1 = new Thread(fun1);
            thread2 = new Thread(fun2);
            thread1.Start();
            thread2.Start();
        }
        private void fun1()
        {
            while(true)
            {
                Thread.Sleep(200);
                SyncContext.Post(postFun1, index1++);
            }
            
        }
        private void fun2()
        {
            while (true)
            {
                Thread.Sleep(200);
                SyncContext.Post(postFun2, index2++);
            }
        }
        private void postFun1(object o)
        {
            label1.Text = o.ToString(); 
        }
        private void postFun2(object o)
        {
            label2.Text = o.ToString();
        }
        /// <summary>
        /// 线程1挂起
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void button1_Click(object sender, EventArgs e)
        {
            thread1.Suspend();
        }
        /// <summary>
        /// 线程2挂起
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>

        private void button3_Click(object sender, EventArgs e)
        {
            thread1.Resume();
        }
        /// <summary>
        /// 线程2挂起
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void button2_Click(object sender, EventArgs e)
        {
            thread2.Suspend();
        }
        /// <summary>
        /// 线程2挂起
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void button4_Click(object sender, EventArgs e)
        {
            thread2.Resume();
        }
    }
}