C#多线程之线程池(ThreadPool)

　　class Program

　　{

　　public static void Main()

　　{

　　// Queue the task.

　　ThreadPool.QueueUserWorkItem(ThreadProc);

　　Console.WriteLine("Main thread does some work, then sleeps.");

　　Thread.Sleep(1000);

　　Console.WriteLine("Main thread exits.");

　　Console.ReadKey();

　　}

　　// This thread procedure performs the task.

　　static void ThreadProc(Object stateInfo)

　　{

　　// No state object was passed to QueueUserWorkItem, so stateInfo is null.

　　Console.WriteLine("Hello from the thread pool.");

　　}

　　}