一直报错,显示line4、line5错误,说我round语句用的不对 select gender,university, count(device_id) as user_num, round(avg(active_days_within_30), 1) as avg_active_days, round(avg(question_cnt), 1) as avg_question_cnt from user_profile group by gender, university; 改了很多次行不通最后在line9加个分号就能运行了太可恶了...