I want to travel from shanghai to Huangshan and Xian. Maybe i know the best and transportation?

From Shanghai, the best method is to take the direct buses to reach the attraction from Shanghai South Long-distance Bus Station.
From HS, it is suggested to take the direct flight. From Xian to Shanghai, you can fly directly or take the bullet trains to reach.
From Shanghai to HS, the bus fare is around 150RMB. For the flight ticket, it is hard to tell, because you may get a discount if you book in advance. From Xian to Shanghai, the bullet trains costs around 338RMB for the second class seat.