C#让线程在出列时睡觉？

using System;
using System.Collections.Generic;
using System.Threading;

class Program
{
    static void Main()
    {
        Queue<int> queue = new Queue<int>();

        Thread producerThread = new Thread(() =>
        {
            for (int i = 0; i < 10; i++)
            {
                queue.Enqueue(i);
                Console.WriteLine($"Producer: Enqueued {i}");
            }
        });

        Thread consumerThread = new Thread(() =>
        {
            while (true)
            {
                if (queue.Count > 0)
                {
                    int item = queue.Dequeue();
                    Console.WriteLine($"Consumer: Dequeued {item}");
                    Thread.Sleep(1000); // 让线程休眠1秒钟
                }
                else
                {
                    Console.WriteLine("Consumer: Queue is empty");
                    Thread.Sleep(1000); // 让线程休眠1秒钟
                }
            }
        });

        producerThread.Start();
        consumerThread.Start();

        producerThread.Join();
        consumerThread.Join();
    }
}