I want to go to dianshen lake. how to get there by bus from century avenue, shanghai?

Oh, you must refer to Dianshan Lake, right?
From the Century Avenue, take public bus no.581 at South Pudong Road Pujian Road Station, and go to Puan Road East Yan'an Road Station. Then take Hu Zhu Express Bus to Zhaohu Station and transfer to Hu Shang Special Bus to Daguanyuan Station. After arriving, you can see the main gate of this scenic area directly.

To avoid many transfers, you can also take a taxi to reach and it costs CNY200-200.