织梦dedecms第3个和第6个li标签margin-right:0;的方法：
{dede:arclist typeid='6' row='6' infolen='135'}
<li[field:global name=autoindex runphp="yes"]
if(@me==3||@me==6)@me="style=\&;margin-right:0;\&;";
else @me="";
[/field:global]>
<b><a href="[field:arcurl/]"><img src="[field:litpic/]" width="200" height="160" alt="[field:title/]"></a></b>
<a href="[field:arcurl/]" title="[field:title/]">[field:title/]</a><span>[field:info/]...</span>
</li>
{/dede:arclist}