程序描述：本章实现了一个支持分页显示功能的拍卖行系统，具体的功能包括：用户管理、添加新的商品、上传商品图片信息、分页浏览商品、显示商品详细信息、买家出价竞标。-Descr iption: This chapter implements a support for paging display system of auction houses, the specific features include: user management, add new products, upload prod