DEDECMS在列表页中间随机插入广告

{dede:arclist row=30 titlelen=50 orderby=pubdate}
<li><span>[field:stime/]</span><a href="[field:arcurl/]" target="_blank">[field:title/]</a>
[field:global.autoindex runphp='yes']
if(@me%5==0){
@me="<div></div>";
}
else{
@me="";
}
[/field:global.autoindex]
</li>
{/dede:arclist}

<style type="text/css">
.liebiao_line{ height:1px; width:100%; border-bottom:1px dashed #000;}
</style>