OnlineBook2是我们做的一个简单的网上书城的项目，实现了该网站的基本功能，但是由于技术有限，也有部分功能未能实现，但是可以供广大爱好者学习使用。-OnlineBook2 is we do a simple online bookstore project, to achieve the basic functions of the site, but because technology is limited, there are some features failed to achi