是否有一个C#等同于Java的CountDownLatch？

using System;
using System.Threading;
using System.Threading.Tasks;

class Program
{
    static void Main(string[] args)
    {
        int count = 5;
        CountdownEvent countdownEvent = new CountdownEvent(count);

        for (int i = 0; i< count; i++)
        {
            Task.Run(() =>
            {
                // 模拟执行任务
                Thread.Sleep(1000);
                Console.WriteLine($"任务{Task.CurrentId}完成");
                countdownEvent.Signal();
            });
        }

        countdownEvent.Wait();
        Console.WriteLine("所有任务完成");
    }
}