策略模式原型

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

 

namespace StrategyMordern

{

     /// <summary>

    /// 抽象算法类  

    /// </summary>

    abstract class Strategy

    {

        //算法方法

        public abstract void AlgorithmInterface();

    }

 

    class ConcreteStrategyA : Strategy

    {

        //算法A实现方法

        public override void AlgorithmInterface()

        {

            Console.WriteLine("算法A实现");

        }

    }

 

    class ConcreteStrategyB : Strategy

    {

        //算法B实现方法

        public override void AlgorithmInterface()

        {

            Console.WriteLine("算法B实现");

        }

    }

 

    class ConcreteStrategyC : Strategy

    {

        //算法C实现方法

        public override void AlgorithmInterface()

        {

            Console.WriteLine("算法C实现");

        }

    }

 

    /// <summary>

    /// Context，用一个ConcreteStrategy来配置，维护一个对Strategy对象的引用。

    /// </summary>

    class Context

    {

        Strategy strategy;

        public Context(Strategy strategy)

        {

            this.strategy = strategy;

        }

 

        //上下文接口

        public void ContextInterface()

        {

            strategy.AlgorithmInterface();

        }

    }

}

 

 

//Main函数主界面

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

 

namespace StrategyMordern

{

    class Program

    {

        static void Main(string[] args)

        {

            Context context;

            context = new Context(new ConcreteStrategyA());

            context.ContextInterface();

 

            context = new Context(new ConcreteStrategyB());

            context.ContextInterface();

 

            context = new Context(new ConcreteStrategyC());

            context.ContextInterface();

 

            Console.Read();

        }

    }

}

代码都是书里看到的，自己手写的。大家共同学习。