菜单命令 } 利用命令模式提供一个服务 } 命令模式的钩子 } Console.ReadKey(); The Command Pattern encapsulates a request as an object, thereby letting you parameterize other objects with different requests, queue or log requests, and suppoert undoable operations. 相关文章： 2021-05-09 2022-12-23 2021-06-24 2022-12-23 2022-12-23 2021-05-12 2021-11-14 2022-12-23