dede:channelartlist 判断

{DEDE:channelartlisttypeid='3'}
{dede:globalname=itemindexrunphp='yes'}
$a="<liclass='frist'>";
$b="<liclass='clear'>";
if(@me==1){@me=$a;}
else{@me=$b;}
{/dede:global}
</li>
{/dede:channelartlist}