1，定义

适配器模式（Adapter），将一个类的接口转换成客户希望的另外一个接口。Adapter模式使得原本接口不兼容而不能一起工作的类可以一起工作

2，UML图

适配器模式

3，基本代码

namespace 适配器模式
{
    class Program
    {
        static void Main(string[] args)
        {
            Target target = new Adapter();
            target.Request();

            Console.Read();

        }
    }

    class Target
    {
        public virtual void Request()
        {
            Console.WriteLine("普通请求");
        }
    }

    class Adaptee
    {
        public void SpecificRequest()
        {
            Console.WriteLine("特殊请求");
        }
    }

    class Adapter : Target
    {
        private Adaptee adaptee = new Adaptee();

        public override void Request()
        {
            adaptee.SpecificRequest();
        }
    }
}

4，简单应用

namespace 适配器模式
{
    class Program
    {
        static void Main(string[] args)
        {
            Player b = new Forwards("巴蒂尔");
            b.Attack();

            Player m = new Guards("麦克格雷迪");
            m.Attack();

            //Player ym = new Center("姚明");
            Player ym = new Translator("姚明");
            ym.Attack();
            ym.Defense();

            Console.Read();
        }
    }

    //篮球运动员
    abstract class Player
    {
        protected string name;
        public Player(string name)
        {
            this.name = name;
        }

        public abstract void Attack();
        public abstract void Defense();
    }

    //前锋
    class Forwards : Player
    {
        public Forwards(string name)
            : base(name)
        {
        }

        public override void Attack()
        {
            Console.WriteLine("前锋 {0} 进攻", name);
        }

        public override void Defense()
        {
            Console.WriteLine("前锋 {0} 防守", name);
        }
    }

    //中锋
    class Center : Player
    {
        public Center(string name)
            : base(name)
        {
        }

        public override void Attack()
        {
            Console.WriteLine("中锋 {0} 进攻", name);
        }

        public override void Defense()
        {
            Console.WriteLine("中锋 {0} 防守", name);
        }
    }

    //后卫
    class Guards : Player
    {
        public Guards(string name)
            : base(name)
        {
        }

        public override void Attack()
        {
            Console.WriteLine("后卫 {0} 进攻", name);
        }

        public override void Defense()
        {
            Console.WriteLine("后卫 {0} 防守", name);
        }
    }

    //外籍中锋
    class ForeignCenter
    {
        private string name;
        public string Name
        {
            get { return name; }
            set { name = value; }
        }

        public void 进攻()
        {
            Console.WriteLine("外籍中锋 {0} 进攻", name);
        }

        public void 防守()
        {
            Console.WriteLine("外籍中锋 {0} 防守", name);
        }
    }

    //翻译者
    class Translator : Player
    {
        private ForeignCenter wjzf = new ForeignCenter();

        public Translator(string name)
            : base(name)
        {
            wjzf.Name = name;
        }

        public override void Attack()
        {
            wjzf.进攻();
        }

        public override void Defense()
        {
            wjzf.防守();
        }
    }
}

5，思考

1，应用于希望复用现存的类，但是接口不一致
2，遇到接口不一致的情况，首先应该通过重构，只有在双方不太容易修改的时候或者无法改变原有的设计和代码的情况下才用适配器模式适配