![](https://csdnimg.cn/release/download_crawler_static/87927502/bg9.jpg)
5.3 数据库的逻辑设计.......................................................................................15
5.4 连接数据库的设计与实现...........................................................................17
6 系统实现 .......................................................18
6.1 客户端设计思路...........................................................................................18
6.2 主菜单界面...................................................................................................18
6.2.1 功能描述 ................................................18
6.2.2 登录界面的设计 ..........................................18
6.2.3 功能描述 ................................................19
6.2.4 界面设计 ................................................19
6.2.5 功能实现及关键代码 ......................................19
6.3 更新界面 ......................................................................................................21
6.3.1 功能描述 ...............................................21
6.3.2 界面设计 ...............................................21
6.3.3 功能实现及关键代码 ......................................21
6.4 注销与结账界面 ..........................................................................................22
6.4.1 功能描述 ...............................................22
6.4.2 界面设计 ...............................................23
6.4.3 功能实现及关键代码 ......................................23
6.5 服务器端的实现...........................................................................................24
6.6 服务器各模块设计.......................................................................................25
6.6.1 登录 ....................................................25
6.6.2 更新 ....................................................25