超市账单管理系统主要用于对超市的交易账单进行管理，如账单录入、账单修改、 账单删除，以及和超市商品相关的供应商、用户的管理等。-Supermarket bills management system is mainly used for bills of supermarket management, entry, such as bill bill to modify, Bills to delete, and associated with supermarket goods sup