There are basically the following methods to upgrade from secondary school to undergraduate course. According to the difficulty and the gold content of the certificate, they are basically listed as follows:

Participate in the general college entrance examination as a social candidate and get a favorite undergraduate college;

If you are a fresh graduate of a technical secondary school, you can take part in the single move of three schools and be admitted to your favorite institution;

Sign up for the self-study exam, study while working, no joint entrance exam, no academic requirements, national recognition, high gold content, must be a set of undergraduate courses, generally graduated in about 3 years;

Sign up for the senior high school entrance examination After passing the exam and being admitted, you can study while working. Generally, you can graduate after 5 years.