dedecms调用二级栏目

{dede:channelartlist typeid="2"}
    <h2><a href="{dede:field name='typeurl'/}">{dede:field name='typename'/}</a></h2>
    {dede:channel type="son"}
        <ul>
            {dede:field.typeid runphp="yes"}
                global $dsql;
                $sql = "SELECT id,typename FROM dede_arctype WHERE reid='@me' ORDER BY id LIMIT 0, 10";
                $dsql->Execute('t', $sql);
                while($row = $dsql->GetArray('t'))
                {
                    echo "<li><a href='/list.php?tid={$row['id']}'>{$row['typename']}</a></li>";
                }
            {/dede:field.typeid}
        </ul>
    {/dede:channel}
{/dede:channelartlist}