帝国CMS如何获取子栏目

<?php 
$bclassid=$GLOBALS[navclassid]; //取得本栏目id 
//取得本栏目下的子栏目 
?> 
[e:loop={"select classid, classname, classpath from `[!db.pre!]enewsclass` where bclassid=&#39;$bclassid&#39; order by `classid` desc ",5,24,0,0,0}]

<?=$class_r[$bqr[classid]][&#39;classname&#39;]?>

<?=$class_r[$bqr[classid]][&#39;classpath&#39;]?>

[ecmsinfo] $bqr[classid] ,8,12,0,0,15,0,0,0[/ecmsinfo]

<?php 
$cid = $navinfor[&#39;classid&#39;]; 
$fid = $class_r[$cid][&#39;bclassid&#39;]; 
?>