What's the best way from zhongshan park (metro) to xintiandi or madang rd (metro)? bus lines in Shanghai?

To Xintiandi, you can take subway line 3 at Zhongshan Park and get off at Honqiao Road. Then transfer to subway line 10 to Xintiandi Station directly.

As for the direction to Madang Road, take subway line 3 at Zhongshan Park to Yishan Road first. Then transfer to subway line 9 to Madang Road directly.