采用ASP.NET技术实现“学生在线考试系统”，通过该考试系统，学校可以建立自己的网上考场，使学生直接进行网上考试，即减少了成本，又避免了笔试的烦琐过程，使考试过程变得轻松、方便；同时还可以有效的控制考试作弊现象，确保考试的公开、公平、公正性。该在线考试系统采用三层结构，分别为用户界面表示层、业务逻辑层、数据访问层，以模型层作为三层的连接介质。-ASP.NET technology to students online examination system " , through the examination system, schools can create their own online exam, students directly online exam, a reduction of costs, but also to avoid the cumbersome process of written examination, the examination process to change easy and convenient　can also effectively control the phenomenon of cheating in examinations to ensure the public of the exam, fairness, impartiality. The online examination system using a three-tier structure, the user interface layer, business logic, data access layer, as the medium of three-tier connection to the model layer.