适配器模式

/// <summary>
        /// 目标抽象类角色
        /// </summary>
        public class Target
        {
            public virtual void Request()
            {
                Console.WriteLine("This is a common request");
            }
        }

        /// <summary>
        /// 适配者类角色
        /// </summary>
        public class Adaptee
        {
            public void SpecificRequest()
            {
                Console.WriteLine("This is a special request.");
            }
        }

        /// <summary>
        /// 适配器角色
        /// </summary>
        public class Adapter : Target
        {
            // 建立一个私有的Adeptee对象
            private Adaptee adaptee = new Adaptee();

            /// <summary>
            /// 通过重写，表面上调用Request()方法，变成了实际调用SpecificRequest()
            /// </summary>
            public override void Request()
            {
                adaptee.SpecificRequest();
            }
        }

        static void Main(string[] args)
        {
            // 对客户端来说，调用的就是Target的Request()
            Target target = new Adapter();
            target.Request();

            Console.ReadKey();