public static void Main()          {          Timer timer= new Timer();            timer.Interval = 100;            timer.Elapsed += new ElapsedEventHandler(Tick);            timer.Start();            Console.ReadLine();            timer.Stop();            Console.ReadLine();            timer.Start();            Console.ReadLine();            timer.Dispose();                      }                     static void Tick(object sender, ElapsedEventArgs e)        {            Console.WriteLine("Tick...");        }