C#多线程Thread使用示例详解

本文为大家分享了C#多线程Thread使用的示例代码，供大家参考，具体内容如下：

多线程：

线程生命周期状态图：

C#线程优先级（概率高低）：

基本使用示例：

using System;
using System.Threading;

namespace month_9_10._1009
{
  class Run5
  {
      /* 测试线程的调用过程
       * 主线程输出world，子线程输出hello
       */
      public static void showHello()
      {
          for(int i = 0; i < 100; i++)
          {
              Console.WriteLine($"Hello\t#{Thread.CurrentThread.Name}");
          }
      }
      public static void Main(string[] args)
      {
          Thread.CurrentThread.Name = "Main Thread!";
          var childThreadRef = new ThreadStart(showHello);
          Console.WriteLine("This is Main process!!!");
          var childThread = new Thread(childThreadRef);
          childThread.Name = "Child Thread!";
          childThread.Start();
          for (int i = 0; i < 100; i++)
          {
              Console.WriteLine($"World!\t#{Thread.CurrentThread.Name}");
          }
      }
  }
}

实例1：窗体标签循环滚动

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

namespace RollMove
{
  public partial class Form1 : Form
  {
      Thread th1 = null;
      public Form1()
      {
          InitializeComponent();
          
      }
      private void Form1_Load(object sender, EventArgs e)
      {
          int _sx = 40;
          int _ex = 280;
          int _top = 70;
          th1 = new Thread(() => {
              while (true)
              {
                  if (_sx <= _ex)
                  {
                      _ex = 280;
                      label1.Location = new Point(_sx, _top);
                      Thread.Sleep(20);
                      _sx += 5;
                  }
                  else
                  {
                      _ex = 40;
                      label1.Location = new Point(_sx, _top);
                      Thread.Sleep(20);
                      _sx -= 5;
                  }
              }
          });
          th1.Start();
      }

      private void Form1_FormClosed(object sender, FormClosedEventArgs e)
      {
          if (th1!=null)
          {
              th1.Abort();
          }
      }
  }
}

实例2：进度条

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

namespace month_9_10._1012
{
  public partial class Form_3 : Form
  {
      public static Print.Print print = Console.WriteLine;
      Thread th1, th2;
      public Form_3()
      {
          InitializeComponent();
          Text = "Welcome!";
          CheckForIllegalCrossThreadCalls = false;
          th1 = new Thread(new ThreadStart(Pro1));
          th1.Priority = ThreadPriority.Lowest;
          th1.Start();
          th2 = new Thread(new ThreadStart(Pro2));
          th2.Priority = ThreadPriority.Highest;
          //th2.Start();
          print(th1.Priority);
          print(th2.Priority);
          
      }

      void Pro1()
      {
          print("XXXXXXX");
          for (int i = 0; i <= 100; i++)
          {
              
              progressBar1.Value = i;
              label1.Text = $"{progressBar1.Value}%";
              Thread.Sleep(200);
              if (i == 20)
              {
                  th2.Start();
                  th2.Join();
              }
          }
      }
      void Pro2()
      {
          print("YYYYYYYY");
          for (int i = 0; i <= 100; i++)
          {
              progressBar2.Value = i;
              label2.Text = $"{progressBar2.Value}%";
              Thread.Sleep(100);
          }
      }

      private void progressBar1_Click(object sender, EventArgs e)
      {
          print("This is Main threading!");
      }

      private void Form_3_Load(object sender, EventArgs e)
      {

      }

      private void Form_3_FormClosing_1(object sender, FormClosingEventArgs e)
      {
          if (th1.ThreadState == ThreadState.Running)
              th1.Abort();
          if (th2.ThreadState == ThreadState.Running)
              th2.Abort();
      }
  }
}

实例三：线程同步（售票模拟）

using System;
using System.Threading;

namespace month_9_10._1012
{
  class Run2
  {
      static Print.Print print = Console.WriteLine;
      int _num = 10;
      void Ticket()
      {
          while (true)
          {
              //上锁
              //lock (this)
              //{
              //    if (_num > 0)
              //    {
              //        Thread.Sleep(100);
              //        print(Thread.CurrentThread.Name + "--票数：" + _num--);
              //    }
              //}

              //放置监视器
              Monitor.Enter(this);
              if (_num > 0)
              {
                  Thread.Sleep(100);
                  print(Thread.CurrentThread.Name + "--票数：" + _num--);
              }
              Monitor.Exit(this);
          }
      }
      static void Main()
      {
          var a1 = new Run2();
          Thread t1 = new Thread(new ThreadStart(a1.Ticket));
          t1.Name = "线程一";
          Thread t2 = new Thread(new ThreadStart(a1.Ticket));
          t2.Name = "线程二";
          Thread t3 = new Thread(new ThreadStart(a1.Ticket));
          t3.Name = "线程三";
          Thread t4 = new Thread(new ThreadStart(a1.Ticket));
          t4.Name = "线程四";
          t1.Start();
          t2.Start();
          t3.Start();
          t4.Start();
      }
  }
}

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持服务器之家。

原文链接：https://blog.csdn.net/qq_42292831/article/details/102472414