此超市管理系统一方面用来实现商品信息的录入、修改、添加、删除、查找、打印、按库存量排序，商品信息文件的保存和读取；另一方面，可以进行收银结账、保存已售商品信息、整理库存等功能。系统使用了复杂的结构体链表，高效的排序算法，使程序运行速度进一步提高，另外，文件的保存与读取保证了商店货物量的更新。-supermarket management system on the one hand to achieve the commodity information input, modify, add, delete, search, print, of sorted inventory, merchandise information file save and read　On the other hand, the cash register checkout, save goods sold, finishing inventory. The system uses a complex structure linked list efficient sorting algorithm, to further improve the program running speed, to save the file and read to ensure the update of the amount of goods in the shops.