<title>
{dede:field name='typeid' runphp='yes'}
$id=@me;
global $dsql;
$sql="select seotitle from dede_arctype where id=$id";
$row=$dsql->getOne($sql);
@me=$row["seotitle"];
{/dede:field}
</title>

$this->Fields['typename'] = $this->TypeLink->TypeInfos['typename'];

$this->Fields['seotitle'] = $this->TypeLink->TypeInfos['seotitle'];