One is a self-service accreditation machine, which can open the borrowing function of ID cards in ten seconds. Id card = library card. If you are afraid that your ID card will be easily lost, you can use the second method.
The second is the general service desk, which opens the reader card with the ID card. After completing the formalities, you can borrow at most 15 books at a time. If the hymn is a foreign household registration, you must bring your local student ID card and residence permit, otherwise you can only apply for a temporary reader card, which is valid for only 2 months.