教学管理，有管理员和普通教师两个角色。 教师可以增加自己的相关信息，包括教育北京，获得奖励，项目等等 管理员可以对教师进行管理，可以编辑教师的情况-Teaching management, there are two teachers and the general manager role. Teachers can increase their information, including education in Beijing, won awards, projects, etc

基于多用户下的JXG误码率，MATLAB-Based on multi-user bit error rate JXG under, MATLAB