委託和事件C#示範代碼

標籤：

class Cat{    private string _name;    public Cat(string name)    {        _name = name;    }    public void Shout()    {        Console.WriteLine("瞄，我是"+_name+"，我來了！");        CatShout();        //第三步，觸發點，事件要加括弧    }    public delegate void CatShoutEventHandler();    //第一步，聲明委託，要加圓括弧    public event CatShoutEventHandler CatShout;        //第二步，聲明事件，類型為以上委託類型}class Mouse{    public string _name;    public Mouse(string name)    {        _name = name;    }    public void Run()    {        Console.WriteLine("貓來了，我是"+_name+"，快跑！");    }}static void Main(string[] args){    Cat cat=new Cat("Tom");    Mouse jerry=new Mouse("Jerry");    Mouse jack=new Mouse("Jack");    cat.CatShout += new Cat.CatShoutEventHandler(jerry.Run);    //第四步，將相關方法的委託登記到事件    cat.CatShout += new Cat.CatShoutEventHandler(jack.Run);    cat.Shout();    Console.ReadLine();}

 

委託和事件C#示範代碼