After the students enter the school, after 1 to 2 years of basic training, they are divided into majors according to the principle of interest and two-way choice. The purpose is to make full use of the advantages of school education resources, offer basic courses of similar majors, increase the coverage of courses, cultivate students' professional interests, predict the demand for talents in society, adjust the direction of talent training in time, and enhance students' ability to adapt to society and employment.