系统地阐述了整个网上书店管理系统的功能及实现。实现了从图书管理，图书分类和查询，到购物车实现，用户订单处理，再到系统管理-Systematic exposition of the entire function and realization of the online bookstore management systems. From the library management, library classification and query to cart implementation, the user order processing, to systems management