//定义米饭产品
        public interface Rice
        {
        //这里定义米饭的公共操作
        }

        class NorthRice:Rice
        {
            public NorthRice()
            {
                Console.WriteLine("\n一碗地道的北方米饭产生了");
            }
        }

        class SouthRice:Rice
        {
            public SouthRice()
            {
                Console.WriteLine("\n一碗地道的南方米饭产生了");
            }
        }

        //定义面包
        public interface Bread
        {
        //这里可以定义一些面包的公共操作
        }

        class NorthBread:Bread
        {
            public NorthBread()
            {
                Console.WriteLine("\n一个地道的北方面包产生了");
            }
        }

        class SouthBread:Bread
        {
            public SouthBread()
            {
                Console.WriteLine("\n一个地道的南方面包产生了");
            }
        }

        /// <summary>
        /// 应用程序的主入口点。
        /// </summary>
        [STAThread]
        static void Main(string[] args)
        {
            //针对接口编程，创建对象尽量返回上层接口，避免使用具体类
            //下面隐藏了具体的创建各种面条，米饭和面包的过程
            Console.WriteLine("\n-------------北方厨师-------------------\n");

            Chef northChef=new NorthChef();
            northChef.MakeNoodle();
            northChef.MakeRice();
            northChef.MakeBread();

            Console.WriteLine("\n-------------南方厨师-------------------\n");

            Chef southChef=new SouthChef();
            southChef.MakeNoodle();
            southChef.MakeRice();
            southChef.MakeBread();
            Console.ReadLine();
        }
    }
}