[织梦CMS] 织梦怎么循环调用二级栏目下三级栏目

{dede:channelartlist  cacheid='channelsonlist' typeid=3 }    
{dede:field name='typename'/}
{dede:channel type='sun' row='10' noself='yes'}     
[field:typename/]
{/dede:channel}
{/dede:channelartlist}

{dede:channelartlist typeid=3 }    
{dede:field name='typename'/}
{dede:sql sql='Select * from `dede_arctype` where reid=~id~ ORDER BY id'}
[field:typename/]
{/dede:sql}
{/dede:channelartlist}