实现图书管理系统的不同身份的登录界面，实现图书的查询，借阅，归还，续借，消除记录，等的增删改查的功能模块，包含access数据库。-Different library management system to achieve the status of login screen, to achieve a query book, borrow, return, renew, remove records, such as additions and deletions to check the

学校课程的超市管理窗体程序，基本的商品显示、分类列表、数据库的增删改查等-The form of supermarket management program of the school curriculum, basic goods, the classification list, database CRUD

一个基于C#的简单的超市管理系统，实现了数据库的增删改查。(A simple supermarket management system, to achieve add, delete, modify and check)