dedecms织梦list标签实现按照权重排序的方法

//排序方式
$ordersql = '';
if($orderby=="senddate" || $orderby=="id") {
$ordersql=" ORDER BY arc.id $orderWay";
}
else if($orderby=="hot" || $orderby=="click") {
$ordersql = " ORDER BY arc.click $orderWay";
}
else if($orderby=="lastpost") {
$ordersql = " ORDER BY arc.lastpost $orderWay";
}
else if($orderby=="weight") {
$ordersql = " ORDER BY arc.weight $orderWay";
}
else {
$ordersql=" ORDER BY arc.sortrank $orderWay";
}

if(preg_match('/hot|click|lastpost|weight/', $orderby))

{dede:list orderby='weight' orderway='asc'