sql语句查询菜单结果成 树状图类型 注意适用于id是四位数

select * from
(
select
	pid,id,name,url,concat(id,":") idOrder
from menu
where
	pid=0 and
	status_id=0
union

select
	pid,id,concat("          ",name),url,concat(pid,":",id )
from menu
where
	status_id=0
	and pid in (
		select
			id
		from menu
		where
			pid=0 and status_id=0
	)
) t

order by idOrder