本系统以结构数组形式保存信息；以菜单方式工作；且界面清晰，便于操作；具有业绩查询功能、产品热销度统计功能及业绩统计功能-The system is an array of structures in the form of stored information to work the way the menu and clear interface, easy to operate has a search function performance, product sales and r