关于委托

//声明委托
public delegate void StartClockDelegate();
        public delegate void StopClockDelegate();
//创建委托实例
        public StartClockDelegate StartClocks;
        public StopClockDelegate StopClocks;
//通过调用委托调用方法
        public void StartClockRunning()
        {
            this.StartClocks();
        }
        public void StopClockRunning()
        {
            this.StopClocks();
        }


//将方法加到委托中
controller.StartClocks += localClock.StartLocalClock;
            controller.StartClocks += londonClock.StartEuropeanClock;
            controller.StartClocks += newYorkClock.StartAmericanClock;
            controller.StartClocks += tokyoClock.StartJapaneseClock;
            controller.StopClocks += localClock.StopLocalClock;
            controller.StopClocks += londonClock.StopEuropeanClock;
            controller.StopClocks += newYorkClock.StopAmericanClock;
            controller.StopClocks += tokyoClock.StopJapaneseClock;