public abstract class Tank    {        public abstract void Shot();        public abstract void Run();    }

解决主题类再多种方向上的扩展功能

 

public abstract class Decorator:Tank    {        private Tank tank;        public Decorator(Tank tank)        {            this.tank = tank;        }        public override void Shot()        {            Console.WriteLine( "Tank.Shot" );            tank.Shot();        }        public override void Run()        {            Console.WriteLine( "Tank.Run" );            tank.Run();        }    }

public class DecoratorA:Decorator    {        public DecoratorA( Tank tank )            : base( tank )        {        }        public override void Shot()        {            //Do some extension 红外线            Console.WriteLine( "DecoratorA.Shot" );            base.Shot();        }        public override void Run()        {            //Do Some extension            Console.WriteLine( "DecoratorA.Run" );            base.Run();        }    }    public class DecoratorB : Decorator    {        public DecoratorB( Tank tank )            : base( tank )        {        }        public override void Shot()        {            //Do some extension 夜视功能            Console.WriteLine( "DecoratorB.Shot" );            base.Shot();        }        public override void Run()        {            //Do Some extension 夜视功能            Console.WriteLine( "DecoratorB.Run" );            base.Run();        }    }

他并不是is a关系，只是把当成接口，主题是has a关系

看调用

class Program    {        static void Main( string[] args )        {            Tank tank = new T50();            DecoratorA da = new DecoratorA( tank );            DecoratorB db = new DecoratorB( da );            db.Shot();        }    }

public class T50:Tank    {        public override void Shot()        {            Console.WriteLine( "T50.Shot" );        }        public override void Run()        {            Console.WriteLine( "T50.Run" );        }    }

在.net里面的装饰功能

 

 

架构设计模式。拜读下有空