using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

namespace Strategy

{

    /// <summary>

    /// 具有飞行行为

    /// </summary>

    public interface FlyBehavior

    {

        void fly();

    }

    /// <summary>

    /// 具有吃饭行为

    /// </summary>

    public interface EatBehavior

    {

        void eat();

    }

    /// <summary>

    /// 用翅膀飞

    /// </summary>

    public class FlyWithWings: FlyBehavior

    {

        #region FlyBehavior 成员

        void FlyBehavior.fly()

        {

            System.Console.WriteLine("用翅膀飞");

        }

        #endregion

    }

    /// <summary>

    /// 用翅膀飞

    /// </summary>

    public class FlyNoWay : FlyBehavior

    {

        #region FlyBehavior 成员

        void FlyBehavior.fly()

        {

            System.Console.WriteLine("飞不了");

        }

        #endregion

    }

    public class EatMeat : EatBehavior

    {

        #region EatBehavior 成员

        void EatBehavior.eat()

        {

            System.Console.WriteLine("吃肉");

        }

        #endregion

    }

    public class EatAll : EatBehavior

    {

        #region EatBehavior 成员

        void EatBehavior.eat()

        {

            System.Console.WriteLine("什么都吃,杂食");

        }

        #endregion

    }

}

 

 

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

namespace Strategy

{

    class AnimalClass

    {

        public abstract class Animal

        {

            protected FlyBehavior fb;

            protected EatBehavior eb;

            public  string name;

            public Animal() { }

            public void Fly()

            {

                fb.fly();

            }

            public void Eat()

            {

                eb.eat();

            }

       

        }

        public class Tiger : Animal

        {

            public Tiger()

            {

                fb=  new FlyNoWay();

                eb = new EatMeat();

                name = "老虎";

            }

        }

        public class Eagle : Animal

        {

            public Eagle()

            {

                fb = new FlyWithWings();

                eb = new EatMeat();

                name = "老鹰";

            }

        }

        public class Human : Animal

        {

            public Human()

            {

                fb = new FlyNoWay();

                eb = new EatAll();

                name = "人类";

            }

        }

    }

}

 

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

namespace Strategy

{

    class Program

    {

        static void Main(string[] args)

        {

            Strategy.AnimalClass.Tiger t = new AnimalClass.Tiger();

            System.Console.WriteLine(t.name);

            t.Eat();

            t.Fly();

            Strategy.AnimalClass.Eagle e = new AnimalClass.Eagle();

            System.Console.WriteLine(e.name);

            e.Eat();

            e.Fly();

            Strategy.AnimalClass.Human h = new AnimalClass.Human();

            System.Console.WriteLine(h.name);

            h.Eat();

            h.Fly();

            System.Console.ReadLine();

        }

    }

}