Which metro line will take me to Huzhu Express Line in Shanghai, I am close to line 2?

As I know, you can take line 2 to People’s Square and leave from Exit 1. After that, walk south along Xizang Middle Rd for 5 minutes, turn right at the first crossing. Walk west along Yan’an Elevated Rd for 5 minutes, and turn left to Pu’an Rd. walk south for 3 minutes to Pu’an Rd, East Yan’an Rd Bus Stop to take the Huzhu Line.