else if($orderby == 'rand') $ordersql = "  ORDER BY rand()";

else if($orderby == 'weight') $ordersql = "  order by arc.weight $orderWay";

{dede:arclist typeid='1' row='8' isweight='y' orderby='weight' orderway='asc'}
<li><span>权重:[field:weight /]</span><a href="[field:arcurl /]">[field:title /]</a></li>
{/dede:arclist}

else if($orderby=="lastpost") {

else if($orderby == 'weight') {
	$ordersql = "  ORDER BY arc.weight $orderWay";
}

/hot|click|lastpost

/hot|click|lastpost|weight

{dede:list pagesize='10' orderby='weight' orderway='asc'}
<li> 
    <a href="[field:arcurl/]" class="title">[field:title/]</a>
    <p class="tro"> [field:description/]... </p>
</li>
{/dede:list}