C#设计模式学习小结之五 适配器模式

将老接口适配到新接口上时可用

using System;namespace 适配器模式{    class Program    {        static void Main(string[] args)        {            MssqlImpl mi = new MssqlImpl();            mi.Read();            mi.Write();            Adapter adapter = new Adapter();            adapter.Read();            adapter.Write();            Console.Read();        }    }    abstract class DBImpl    //新接口    {        public abstract void Read();        public abstract void Write();    }    class MssqlImpl : DBImpl    {        public override void Read()        {            Console.WriteLine("MSSQL 读取数据库");        }        public override void Write()        {            Console.WriteLine("MSSQL 写入数据库");        }    }    class AccessImpl   //老接口    {        public void AccessRead()        {            Console.WriteLine("Access 读取数据库");        }        public void AccessWrite()        {            Console.WriteLine("Access 写入数据库");        }    }    class Adapter : DBImpl    {        private AccessImpl ai = new AccessImpl();        public override void Read()        {            ai.AccessRead();        }        public override void Write()        {            ai.AccessWrite();        }    }}