C# 多线程的等待所有线程结束 用 ManualResetEvent 控制

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

namespace ConsoleApplication1
{
class Program
{
static void Main(string[] args)
{
var waits = new List<EventWaitHandle>();
for (int i = 0; i < 10; i++)
{
var handler = new ManualResetEvent(false);
waits.Add(handler);
new Thread(new ParameterizedThreadStart(Print))
{
Name = "thread" + i.ToString()
}.Start(new Tuple<string, EventWaitHandle>("test print:" + i, handler));
}
WaitHandle.WaitAll(waits.ToArray());
Console.WriteLine("Completed!");
Console.Read();

}

private static void Print(object param)
{
var p = (Tuple<string, EventWaitHandle>)param;
Console.WriteLine(Thread.CurrentThread.Name + ": Begin!");
Console.WriteLine(Thread.CurrentThread.Name + ": Print" + p.Item1);
Thread.Sleep(300);
Console.WriteLine(Thread.CurrentThread.Name + ": End!");
p.Item2.Set();
}

}
}