Elective courses in universities are divided into professional courses and public courses. Public elective courses are free of charge in the whole school, usually starting at the end of a semester or the first week of school.

Different from professional courses, public elective courses are optional, and each university's elective courses are different, some are more, some are less, so just choose according to your own ideas.

Course selection system is generally called course selection network, but its actual function far exceeds the single function of course selection. The school's notices about educational affairs, courses and other teaching arrangements are posted on the course selection network to spread information.

Students can log on to the course selection network to inquire about their various related situations in college in real time, or consult administrators and online teachers online to solve various difficult problems through online answering questions.