Credits are divided into compulsory credits and elective credits, among which elective credits are divided into limited elective credits and public elective credits. All credits for compulsory courses must be obtained. For example, freshmen usually have a compulsory course of advanced mathematics, and the credits of this course will be more, usually 5-6 credits, which varies from school to school.

Calculation method of credit system. Generally speaking, credits are calculated on the basis of teaching hours per week, experimental and internship hours and designated self-study hours after class. According to the different requirements of each course, different credits are given, and the total number of different credits in each professional course is stipulated as the total credits for students' graduation.

Every subject has fixed credits? As long as you don't fail, you can earn enough credits to get a degree certificate. Each school has different credit requirements.

If you take a course and pass the exam, you can get credit for this course (provided that you register for this course in advance).

Have a plenty of compulsory courses, after learning a course, pass the exam and get corresponding credits. Some are elective courses, that is, you choose the courses you like to study and get corresponding credits after passing the exam or assessment. The sum of elective courses and compulsory courses, credits can meet the requirements.