Those who can go in without a library card are required to show their library card, but most of the time no one cares. But I won't lend you the book. You must register with your library card. If you go in with a strict book, no one will doubt you. If you are really unlucky and asked to show your library card, you can say that you forgot to bring it. If you don't borrow books, you can look around and maybe let you in.

Jiangsu University, located in Zhenjiang City, Jiangsu Province, is a comprehensive research-oriented national key university jointly established by the Jiangsu Provincial People's Government of People's Republic of China (PRC), the Ministry of Education and the Ministry of Agriculture and Rural Affairs, and was selected as the first batch of universities in the "Excellent Engineer Education and Training Plan" of the Ministry of Education and the "National Key Discipline Project". The former life of Jiangsu University was: 1960- 1982: Zhenjiang Agricultural Machinery College; 1982- 1994: Jiangsu institute of technology; 1994-200 1: Jiangsu university of science and technology; 200 1- Up to now: Jiangsu University.