The subway to Shanghai University Station is the north gate, then go south from the north gate, turn left at the T-junction, turn right in front of the tennis court, turn left at the T-junction, and turn right when you see the T-junction in the auditorium. The second building in the south is the staircase classroom in F building. It may be hard to understand. Draw a picture (blue route).

Or get off at Chen Nan Road, go west to the Chen Nan intersection of Qiu Jin Road, go south to the East Gate, come in from the East Gate, go to the first T-junction, and go south to the second building. (red route).