1. College, that is, junior college. Most of them are higher vocational and technical schools, and only graduation certificates are given. Without a degree certificate, it is easier to enter, usually for three years.

2. Undergraduate courses are divided into one, two and three, and the higher level has a double-class college, which is a full-time undergraduate college. Diplomas and degree certificates will be issued, and the degree certificate needs to be completed with enough credits, which will affect the degree. Generally, it is a four-year system.

3. Second degree, you can choose the second degree stipulated by the state during the university, and generally study for two years.

4. Postgraduates have a bachelor's degree or above. In China, it refers to postgraduate courses after junior college and undergraduate course. Postgraduate education belongs to the higher education in the national education sequence, which is divided into two levels: postgraduate and doctoral.