bylw

代码说明：

  根据使用本平台的对象，系统把用户列为四类：信息管理员、院系管理员、教师、在校学生。根据身份不同，功能也有所相同。　(According to the object of this platform, as a user of the system in four categories: information manager, department administrators, teachers, students. Depending on the status, functions have also been the same.)