说明：  使用html，javascript，jsp，javabean，sql server等技术，设计与开发在线考试系统，实现以下功能： 1. 用户分为教师和学生。 2. 教师可以实现登录，学生考试名单的导入，试题库的管理及启动考试等功能。 3. 学生可以实现登录，随机抽题，开始考试并倒计时，提交试卷，及难易度问卷调查等功能。 4. 试题库包含单选，多选，判断，填空等题目类型，学生试卷由随机抽取的5个单选，5个多选，10个判断，10个填空组成。 5. 当学生点击提交试卷时，将学生答卷全部存入数据库，并同时生成以“学号.txt”命名的文件中。 6. 当学生提交试卷后，单选，多选，判断，填空等题目可以实现自动阅卷并评分。
(Using html, javascript, jsp, javabean, sql server technology, design and development of online examination system, to achieve the following functions: 1. The user is divided into teachers and students. 2. Teachers can log in, import student test lists, manage test and start the exam and other functions. 3. Students can log on, random question, and the countdown begins examination, submit papers, and ease of questionnaires and other functions. The test contains radio, multiple choice, judgment, fill in the blank on such topics as the type of student papers a random sample of five radio, over 5 election, 10 judgments, 10 fill in the blank components. 5. When students click submit papers, it will be stored in the of all student responses, and also generates study .txt file named. 6. When students submit papers, radio, multiple choice, judgment, and other topics can automatically fill in the blank scoring and scoring.)