C#Winform定时执行一段程序

System.Timers.Timer timer = new System.Timers.Timer();

timer.Enabled = true;

timer.Interval = 1000;//执行间隔时间,单位为毫秒  
timer.Start();
timer.Elapsed += new System.Timers.ElapsedEventHandler(Timer1_Elapsed); 

private void Timer1_Elapsed(object sender, System.Timers.ElapsedEventArgs e)
{
      // 得到intHour,intMinute,intSecond，是当前系统时间  
      int intHour = e.SignalTime.Hour;
      int intMinute = e.SignalTime.Minute;
      int intSecond = e.SignalTime.Second;
      // System.Windows.Forms.MessageBox.Show(intHour.ToString());

//自己设置hour,minuter,second,到设定的时间就开始执行程序  
      if (intHour == hour && intMinute == minuter && intSecond == second)
      {               
            System.Windows.Forms.MessageBox.Show("时间到了！");
      }
}