Now we can find many links when we enter the course selection on a treasure. It can be said that these links are well received. It can be said that it is basically difficult for you to grab a one-minute course and then get robbed. And the rest of the elective courses are not very good. Sometimes I can only say that I will come back next semester with WiFi. I can say why I can't get it now. To this end, many students think it is the problem of network speed. The school network is not as good as the off-campus network, and many college students prefer to line up outside. I think the problem of choosing some popular courses at the current speed of students' course selection is mainly due to the ineffective measures formulated by the school supervision department. I think schools should classify students' elective courses, so that each student can choose his favorite elective courses, and students can't be so cold sometimes. There is also the need for schools to upgrade the campus network, not so slow. Sometimes it takes a long time to log in to QQ. How can such a network speed satisfy students?