$nav = GET('navigation','',array('ord'=>'desc','id'=>'asc'),array('pid'=>0))
首页
<{$list['name']}>
$navchild = GET('navigation','',array('ord'=>'desc','id'=>'asc'),array('pid'=>$list['id']))
<{$step['name']}>
$slide = GET('link','',array('ord'=>'desc','id'=>'desc'),array('type'=>'slide'))
