进销存升级版,增加了一些模块，现在基本实现采购，销售退货，权限管理，统计报表，版本更新等功能。并且把数据库更改成了Access，这样就避免了客户安装Sql Sever的麻烦 登录帐号为：1001 密码：admin-Invoicing upgrades to increase the number of modules, and now realizing purchasing, sales returns, rights management, statistical reporting,