本系统实现对进货单的添加、修改、删除、查询功能，对每一笔进货单都进行备案，存入数据库中，可以按进货单号和进货日期多种方式进行查询，对数据库中无用的进货单执行删除操作。对每一笔进货单中的货物的详细信息进行记载，将货物的详细信息载入数据库中，方便查询和对货物信息的管理。本系统还需要对柜存信息实行管理，使超市工作人员能够随时查看柜存情况，以及能够提醒采购员对缺货商品的采购。-The system to realize进货单add, modify, delete, query functions, for each进货单have carried out a record into the database, you can click and purchase date进货单a variety of ways to carry out inquiries on the database useless进货单the implementation of the delete operation. For each of the goods in a进货单detailed information records, the details of the goods included in the database to facilitate inquiries and information management of goods. The system also needs to keep the information counter management, so that the supermarket staff to view the counter deposit at any time, as well as to remind the buyer of goods out of stock purchases.