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老鼠出现引发的血案

老话题,委托、事件和方法,经典的案例,重新搞一下。

/*      老鼠出现引发的血案 ^_^
测试目标:老鼠出现后,猫叫,吓跑了老鼠且惊醒睡觉的主人,主人打猫,猫逃跑,老鼠乐了。
实现方法:先定义对象、再定义动作、再定义事件
实现理念:要事件驱动,关键事件MouseComeOut-老鼠出现、CatCry-猫叫、HitCat 主人打猫
 * Mouse :ComeOut()、Escape()动作;订阅Cat.Cry()-->Escape()
 * Cat:Cry()、Smile()、Escape()动作;订阅Mouse.ComeOut()-->Cry()
 * Man:Wakeup()、HitCat()动作;订阅Cat.Cry()-->Wakeup()
 *                                                                  -->HitCat()-->Cat.Escape()
结论:事件提供低耦合调用多个对象方法的特性;在使动者的方法内调用以引发事件!
*/

using System;

namespace DelegateAndEvent
{
    
public delegate void delegateMouseComeOut();
    
public delegate void delegateCatCry();
    
public delegate void delegateManHitCat();

    
public class Mouse
    {
        
public event delegateMouseComeOut eventMouseComeOut;

        
public void ComeOut()
        {
            Console.WriteLine(
"Mouse.ComeOut()\tHi,I'm a Mouse, I'm Comming Out NOW.");
            eventMouseComeOut(); 
//触发eventMouseComeOut事件,监听该事件的方法将被调用
        }

        
public void Escape()
        {
            Console.WriteLine(
"Mouse.Escape()\tSomething Dangerouse! Escape NOW!");
        }

        
public void Smile()
        {
            Console.WriteLine(
"Mouse.Smile()\tHa,Ha! It's So FUNNY!");
        }
    }

    
public class Cat
    {
        
public event delegateCatCry eventCatCry;

        
public void Cry()
        {
            Console.WriteLine(
"Cat.Cry()\tWhat's THAT! \"Don't GO!\"");
            eventCatCry();
        }

        
public void Escape()
        {
            Console.WriteLine(
"Cat.Escape()\tDangerouse! Escape NOW!");
        }
    }


    
public class Man
    {
        
public event delegateManHitCat eventManHitCat;

        
public void WakeUp()
        {
            Console.WriteLine(
"Man.WakeUp()\tSo Noising! What's UP!");
        }
        
public void HitCat()
        {
            Console.WriteLine(
"Man.HitCat()\tFucking Cat, Can you be QUIET!");
            eventManHitCat();
        }
    }

    
/* 
Mouse.ComeOut() Hi,I'm a Mouse, I'm Comming Out NOW.
Cat.Cry()       What's THAT! "Don't GO!"
Man.WakeUp()    So Noising! What's UP!
Man.HitCat()    Fucking Cat, Can you be QUIET!
Cat.Escape()    Dangerouse! Escape NOW!
Mouse.Smile()   Ha,Ha! It's So FUNNY!
Mouse.Escape()  Something Dangerouse! Escape NOW!
     * 
*/
    
public class RunApplication
    {
        
static void Main()
        {
            Mouse mouse 
= new Mouse();
            Cat cat 
= new Cat();
            Man man 
= new Man();

            mouse.eventMouseComeOut 
+= new delegateMouseComeOut(cat.Cry);
            cat.eventCatCry 
+= new delegateCatCry(man.WakeUp);
            cat.eventCatCry 
+= new delegateCatCry(man.HitCat);
            cat.eventCatCry 
+= new delegateCatCry(mouse.Escape);
            man.eventManHitCat 
+= new delegateManHitCat(cat.Escape);
            man.eventManHitCat 
+= new delegateManHitCat(mouse.Smile);

            mouse.ComeOut();    
//引发一系列的动作,靠事件:eventComeOut
            Console.ReadKey();
        }
    }
}

 

posted on 2011-04-18 10:12  许明会  阅读(421)  评论(0编辑  收藏  举报