如何使用Timer?

C# / SimpleTimer.cs

using System;
using System.Threading;

class MyClock {
   public static void showTime(Object stateInfo) {
      Console.WriteLine("{0}", DateTime.Now.ToString("h:mm:ss:fff"));
   }
}
class Client {
   static void Main() {
      Timer timer = new Timer(new TimerCallback(MyClock.showTime), 
                              new AutoResetEvent(false), 0, 250);
      while(true);
   }
}

Reference : http://www.cnblogs.com/oomusou/archive/2007/07/28/834328.html