对图书信息进行图书入库、借阅登记、借阅查询、过期提示、办理借书卡这些日常业务的需要。高效性通过系统的实用，能够改变旧的图书管理模式，使对图书的管理、借阅、查询更加方便有效。-Book of books information warehousing, loan registration, loan inquiries, expired tips, apply for library cards to these routine business needs. Practical efficien

实现图书管理系统，包括图书入库、出库、修改、查询、卖书等各种功能-Library Management System, including books storage, a library, modify, query, sell books and other functions