using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Configuration;using System.Reflection;//抽象工厂方法namespace Abstract_Dactory{    /// <summary>    /// 客户端测试类    /// </summary>    class Program    {        static void Main(string[] args)        {            //使用抽象层定义            SkinFactory factory;            Button bt;            TextFiled tf;            ComBox cb;            //读取配置文件            string factoryType = ConfigurationManager.AppSettings["factory"];            //反射生成对象            factory = (SkinFactory)Assembly.Load("Abstract_Dactory").CreateInstance(factoryType);            bt = factory.CreateButton();            tf = factory.CReateTextFiled();            cb = factory.CreateComBox();            bt.Display();            tf.Display();            cb.Display();            Console.ReadKey();        }    }    /// <summary>    /// 按钮接口，充当抽象产品    /// </summary>    internal interface Button    {        void Display();    }    /// <summary>    ///  Spring按钮类充当具体产品    /// </summary>    class SpringButton:Button    {        public void Display()        {            Console.WriteLine("显示浅绿色按钮");        }    }    /// <summary>    ///  Summer按钮类充当具体产品    /// </summary>    class SummerButton : Button    {        public void Display()        {            Console.WriteLine("显示浅蓝色按钮");        }    }    /// <summary>    /// 文本框接口类，充当抽象产品    /// </summary>    interface TextFiled    {        void Display();    }    /// <summary>    /// Spring文本框充当具体产品    /// </summary>    class SpringTextFiled : TextFiled    {        public void Display()        {            Console.WriteLine("显示浅绿色文本框");        }    }    /// <summary>    /// Summer文本框充当具体产品    /// </summary>    class SummerTextFiled : TextFiled    {        public void Display()        {            Console.WriteLine("显示浅蓝色文本框");        }    }    /// <summary>    /// 组合框接口,充当抽象产品类    /// </summary>    interface ComBox    {        void Display();    }    /// <summary>    /// Spring组合框，充当具体产品    /// </summary>    class SpringComBox : ComBox    {        public void Display()        {           Console.WriteLine("显示浅绿色组合框");        }    }    /// <summary>    /// Summer组合框，充当具体产品    /// </summary>    class SummerComBox : ComBox    {        public void Display()        {            Console.WriteLine("显示浅蓝色组合框");        }    }    /// <summary>    /// 界面工厂接口，充当抽象工厂    /// </summary>    interface SkinFactory    {        Button CreateButton();        TextFiled CReateTextFiled();        ComBox CreateComBox();    }    /// <summary>    /// Spring皮肤工厂，充当具体工厂    /// </summary>    class SpringSkinFactory : SkinFactory    {        public Button CreateButton()        {            return new SpringButton();        }        public TextFiled CReateTextFiled()        {           return new SpringTextFiled();        }        public ComBox CreateComBox()        {            return new SpringComBox();        }    }    /// <summary>    /// Summer皮肤工厂,充当具体工厂    /// </summary>    class SummerSkinFactory : SkinFactory    {        public Button CreateButton()        {            return new SummerButton();        }        public TextFiled CReateTextFiled()        {            return new SummerTextFiled();        }        public ComBox CreateComBox()        {           return new SummerComBox();        }    }}

<?xml version="1.0" encoding="utf-8"?><configuration>  <appSettings>    <add key="factory" value="Abstract_Dactory.SummerSkinFactory"/>  </appSettings></configuration>