打开/include/arc.listview.class.php文件
找到
//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 {
            $ordersql=" ORDER BY arc.sortrank $orderWay";
        }
改成
//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";
        }
再找到
if(preg_match('/hot|click|lastpost/', $orderby))
改成
if(preg_match('/hot|click|lastpost|weight/', $orderby))
前端调用：
{dede:list orderby='weight' orderway='asc'}