我本地通过,然后一直说我答案结果不对,我晕了,有大神知道我这个哪里错了,附上代码~~谢谢啦 select aa.userid, round(aa.cnt_1d,1) as cnt_1d,round(aa.amt_1d,1) as amt_1d,round(bb.cnt_7d,1) as cnt_7d,round(bb.amt_7d,1) as amt_7d,round(cc.cnt_15d,1) as cnt_15d,round(cc.amt_15d,1) as amt_15d from (SELECT userid,count(*) as cnt_1d,sum(amount) as am...