本系统主要为用户提供了会员注册，购物车管理，用户资料修改等功能，为管理员提供了商品管理，用户信息管理等功能。在设计方面，本系统采用B/S三层结构，同时使用JSP技术进行动态页面的设计，从系统的安全性和代码的可重用性方面考虑，运用JavaBean对程序的关键代码进行封装。后台数据库选用My SQL数据库。,The system provides users with a membership registration, shopping cart management, user data mod

NAND Flash has become the most widely used electronic stable storage technology for embedded systems. As on-board storage capacity increases, the need for efficient indexing techniques arises. Such techniques are very challenging to design due to

语言开发设计，对于各种虚拟内存页面置换算法有很大的帮助-Language development and design, for a variety of virtual memory page replacement algorithm is a great help