using System;using System.Collections;using System.Collections.Generic;namespace ConsoleApplication1{    class Program    {                public static void Main()        {            Cat catJason = new Cat("Jason");            Mouse mouseJeck = new Mouse("mouseJeck");            Mouse mouseJar = new Mouse("mouseJar");            catJason.ShutHandler+=new Cat.ShutEventArgsHandler(mouseJeck.Shut);            catJason.ShutHandler+=new Cat.ShutEventArgsHandler(mouseJar.Shut);            catJason.Shut();            Console.Read();        }    }    class Cat    {        public string Name{ get; set; }        public Cat()        {         }        public Cat(string name)        {            this.Name = name;                    }        public void Shut()        {            Console.WriteLine("Hi!大家好,我叫" + Name);            ShutHandler();        }        public delegate void ShutEventArgsHandler();        public event ShutEventArgsHandler ShutHandler = delegate { };    }     class Mouse    {        public string Name { get; set; }        public Mouse()        {         }         public Mouse(string name)        {            this.Name = name;        }         public void Shut()        {             Console.WriteLine("我是" + Name + "猫来了，大家快跑...");        }    } }