Hangzhou train station to ZGU

You must refer to the Zhejiang Gongshang University. If you happen to mean the campus on Jiaogong Road, you can take bus no. 11 near the railway station and get off at Xianing Bridge. Then you can easily find the school.

From the airport, you can take shuttle bus to Civial Aviation Ticket Office. After that, take a taxi to your destination in aorund 10min, at the cost of no more than CNY20.