这是一个网上书店的源程序，简单的实现了网上售书的功能。-This is the source of an online bookstore, simple implementation of the functionality of online book sales.

一个网上书店售书系统，简单的功能包括购物车、标记等等功能，包含数据库；-An online bookstores sell books, simple features include shopping cart, mark, etc., that contains the database