说明：  本文介绍了一个基于网络环境的考试系统设计与实现过程，包括系统需求分析和系统的功能设计、数据库设计以及主要ASP.NET页面的设计。重点阐述了用户登录模块、题库管理模块和试卷管理模块的设计。
(This paper introduces a network-based environment for the examination system design and implementation process, including system requirements analysis and the function of the system design, database design and the main ASP.NET page design. Focus on the user login modules, database management module and examiners management module design.)