There are several ways to go from Shanghai Hongqiao Airport T2 to T1:
Subway: Take Metro Line 10, starting from T2 and arriving directly at T1. After getting off at Hongqiao Railway Station, take Exit T1.
Airport Shuttle Bus: There is a shuttle bus in Hongqiao Airport that runs regularly between T1 and T2.
Taxi or online car-hailing: Take a taxi or online car-hailing directly from T2 to T1, but the cost is relatively high.
Walking: If the distance is relatively close, you can also choose to walk there, but you need to consider the convenience of carrying luggage.
Which method you choose depends on your specific situation and needs.