C#中简单线程池的代码

using System;
using System.Threading;

class Program
{
    static void Main()
    {
        // 将线程池中的工作线程数设置为4
        ThreadPool.SetMinThreads(4, 4);

        // 将线程池中的工作线程数设置为20
        ThreadPool.SetMaxThreads(20, 20);

        // 创建一个任务队列
        for (int i = 0; i < 100; i++)
        {
            ThreadPool.QueueUserWorkItem(new WaitCallback(MyTask), i);
        }

        Console.ReadLine();
    }

    static void MyTask(object state)
    {
        int taskId = (int)state;
        Console.WriteLine($"Task {taskId} is running on thread {Thread.CurrentThread.ManagedThreadId}");
        Thread.Sleep(1000);
        Console.WriteLine($"Task {taskId} is completed");
    }
}