About 1 hour 10 minute/27.8km.

Nanjing Station →70 meters walk to Nanjing Station, subway 1 line (or subway 1 line south extension line → Xinjiekou Station, subway line 2 → Nanda Xianlin Campus Station (exit 2) → cross the road, turn right, turn left, and walk 280 meters to the south gate of Nanjing University Xianlin Campus.

The problem of adoption has been solved.