Water can definitely be brought in, so can your schoolbag and personal data you need. Because it is a library, try not to bring colored drinks with skins and food that is difficult to clean. Remember to take the garbage away and throw it away before you leave. (Recommended mineral water+compressed biscuits)
There is no bathroom in the study room, and the bathroom is on the left hand side of the study room door.
The computer ranking of the study room uses the reader card of Nanjing Library (both reading card and library card are acceptable).
I don't need to leave for half an hour (because I seldom go out and all my belongings are on my seat, so I'm not sure whether the mechanism of returning my seat is manual or computer. But going out to the toilet won't affect)