不明白为什么这么写输出的和答案不一样,答案多了一条user_id=10的数据select user_id , count(user_id) visit_nums from visit_tb where user_id in (select user_id from order_tb where left(trim(order_time),10) = "2022-09-02") and left(trim(visit_time),10) = "2022-09-02" and left(trim(leave...