c#多线程相关类和方法的示例代码和实例实现

下面是C#多线程相关类和方法的示例代码和实例实现：

1. Thread类示例：

using System;
using System.Threading;

class Program
{
    static void Main(string[] args)
    {
        Thread thread = new Thread(new ThreadStart(Worker));
        thread.Start();
        Console.WriteLine("Main thread is running.");
        thread.Join(); // 等待子线程结束
        Console.WriteLine("Main thread is done.");
    }

    static void Worker()
    {
        Console.WriteLine("Worker thread is running.");
        Thread.Sleep(3000); // 模拟耗时操作
        Console.WriteLine("Worker thread is done.");
    }
}

2. ThreadPool类示例：

using System;
using System.Threading;

class Program
{
    static void Main(string[] args)
    {
        ThreadPool.QueueUserWorkItem(new WaitCallback(Worker));
        Console.WriteLine("Main thread is running.");
        Console.ReadLine();
    }

    static void Worker(object state)
    {
        Console.WriteLine("Worker thread is running.");
        Thread.Sleep(3000); // 模拟耗时操作
        Console.WriteLine("Worker thread is done.");
    }
}

3. Task类示例：

using System;
using System.Threading.Tasks;

class Program
{
    static void Main(string[] args)
    {
        Task task = Task.Run(() =>
        {
            Console.WriteLine("Worker task is running.");
            Thread.Sleep(3000); // 模拟耗时操作
            Console.WriteLine("Worker task is done.");
        });
        Console.WriteLine("Main thread is running.");
        task.Wait(); // 等待任务结束
        Console.WriteLine("Main thread is done.");
    }
}

4. Parallel类示例：

using System;
using System.Threading.Tasks;

class Program
{
    static void Main(string[] args)
    {
        Parallel.For(0, 10, i =>
        {
            Console.WriteLine("Worker task {0} is running.", i);
            Thread.Sleep(1000); // 模拟耗时操作
            Console.WriteLine("Worker task {0} is done.", i);
        });
        Console.WriteLine("Main thread is running.");
        Console.ReadLine();
    }
}

注意：这些示例代码只是演示了如何使用多线程相关类和方法，实际应用中还需要考虑线程安全、异常处理等问题。