There are two kinds of library cards, which are related to the deposit you paid in advance. Generally, library cards are borrowed with a deposit of 200, and some are borrowed with a deposit of 300.
You can renew it. The general loan term is 2 months, which can be renewed before the expiration.
There are three ways,
One is to get the library on the automatic lending terminal, scan the lending card, find the corresponding book and choose to renew it.
Second, you can also go to the service desk in the lobby and ask the staff to help renew the loan.
The shortest answer is that WeChat pays attention to the official WeChat account of Shaanxi Library, binds your borrowing number, and then you can choose the renewal service in the official WeChat account.