cursor.execute('UPDATE borrow_msg SET bor_bookid=%s,bor_time=%s,accept_time=%s WHERE accept_time =(SELECT accept_time FROM(SELECT accept_time FROM borrow_msg WHERE accept_time='+t+')AS temp)',request_str[0],request_str[2] )
啥问题，我记得mysqll直接执行的话会报错，好像不允许这样执行？