桥模式

经典的就是坦克例子

比如定义一个坦克，有各种型号，T50.T69,T99等，电脑上游戏的坦克有一种，手机上坦克有一种

经典代码，我直接贴代码

 public abstract class Tank
    {
        protected TankPlatformImplementation tankImpl;

        public Tank(TankPlatformImplementation tankImpl)
        {
            this.tankImpl = tankImpl;
        }

        public abstract void Shot();
        public abstract void Run();
        public abstract void Stop();
    }

 public abstract class TankPlatformImplementation
    {
        public abstract void MoveTankTo();
        public abstract void DrawTank();
        public abstract void DoShot();
        public abstract void Stop();
    }

 public class T50:Tank
    {
        public T50( TankPlatformImplementation tankImpl )
            : base( tankImpl )
        {
        }

        public override void Shot()
        {
            tankImpl.DoShot();
        }

        public override void Run()
        {
            tankImpl.MoveTankTo();
        }

        public override void Stop()
        {
            tankImpl.Stop();
        }
    }

    public class T75 : Tank
    {
        public T75( TankPlatformImplementation tankImpl )
            : base( tankImpl )
        {
        }

        public override void Shot()
        {
            tankImpl.DoShot();
        }

        public override void Run()
        {
            tankImpl.MoveTankTo();
        }

        public override void Stop()
        {
            tankImpl.Stop();
        }
    }

public class PCTankImplementation:TankPlatformImplementation
    {
        public override void MoveTankTo()
        {
        }

        public override void DrawTank()
        {
        }

        public override void DoShot()
        {
        }

        public override void Stop()
        {
        }
    }

    public class MobileankImplementation : TankPlatformImplementation
    {
        public override void MoveTankTo()
        {
        }

        public override void DrawTank()
        {
        }

        public override void DoShot()
        {
        }

        public override void Stop()
        {
        }
    }

调用

class Program
    {
        static void Main( string[] args )
        {
            TankPlatformImplementation tankImpl = new PCTankImplementation();

            Tank tank = new T50( tankImpl );
        }
    }

这样子达到松耦合，客户端可以实现灵活多变，也拒绝了繁琐急剧膨胀的类型继承，达到结构明晰