超市收银系统 数据库课程设计，含源代码和详细的实验报告-Supermarket cashier system database design curriculum, including the source code and the detail reports

自己写的简单超市管理系统，能够使用 但是还有一些BUG-Write their own simple supermarket management system, to use but there are some BUG

能够在线查询，统计产品信息，销售情况，退货信息，及每天收银信息。基于一种可视化编程工具，后台数据库任选-Able online inquiries, statistical product information, sales, returns information, and daily cash register information. Based on a visual programming tool, the background database optionally