这是一个客户管理系统，良好的编程习惯，和注释便于初学者读，并且附带视频解释如何配置数据库，使其能够在你的机器上运行。登录帐号为mr，密码为mrsoft-This is a customer management system, good programming practice, and notes easy for beginners to read, and comes with video explains how to configure the database so that it