private static void Main(string[] args) { Console.WriteLine("小明让小刚去酒店订餐"); //定义执行者,小刚 SomeG g = new SomeG(); //定义命令,订餐 Command com = new Hotel(g); //定义命令者,小明 SomeM m = new SomeM(com); //执行命令 m.Go(); Console.ReadLine(); }