本系统的主要为老师与学生提供方便灵活的课程管理系统。老师通过特有功能可以对课程、课件、答疑、题库、测验进行增删改查。学生可以对课件进行浏览，在线提问和测试以及成绩浏览。登陆界面及页面提交方式均采用servlet，后台数据交互使用JDBC，独立设计数据库，实现表的关联(The system is mainly for teachers and students to provide a convenient and flexible curriculum management system. Teachers can add and delete courses, courseware, answer questions, question banks and tests through special functions. Students can browse the courseware, ask questions and tests online, and browse the results. Servlet is used in both landing interface and page submission. The background data is interactively used in JDBC, and the database is designed independently to implement the association of the table)