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《大话设计模式》学习笔记18:桥接模式

  

  

手机品牌及手机软件示例:

  

1.Implementor:

    public abstract class HandsetSoft
    {
        public abstract void Run();
    }

2.ConcreteImplementor(以游戏类为例):

    public class HandsetGame:HandsetSoft
    {
        public override void Run()
        {
            Console.WriteLine("运行手机游戏");
        }
    }

3.Abstraction:

    public abstract class HandsetBrand
    {
        protected HandsetSoft handsetSoft;
        public void SetHandsetSoft(HandsetSoft handsetSoft)
        {
            this.handsetSoft = handsetSoft;
        }
        public abstract void Run();
    }

4.RefinedAbstraction(以手机品牌N为例):

    public class HandsetBrandN:HandsetBrand
    {
        public override void Run()
        {
            handsetSoft.Run();
        }
    }

5.客户端代码:

    class Program
    {
        static void Main(string[] args)
        {
            HandsetBrand handsetBrand;

            handsetBrand = new HandsetBrandN();
            handsetBrand.SetHandsetSoft(new HandsetGame());
            handsetBrand.Run();
            handsetBrand.SetHandsetSoft(new HandsetAddressList());
            handsetBrand.Run();

            handsetBrand = new HandsetBrandM();
            handsetBrand.SetHandsetSoft(new HandsetGame());
            handsetBrand.Run();
            handsetBrand.SetHandsetSoft(new HandsetAddressList());
            handsetBrand.Run();
        }
    }

 

  “将抽象部分与它的现实部分分离”即实现系统可能有多角度分类,每一种分类都有可能变化,那么就把这种多角度分离出来让它们独立变化,减少它们之间的耦合。

 

posted on 2015-05-23 12:51  Walden1024  阅读(227)  评论(0编辑  收藏  举报