$query = "SELECT main.id AS aid,main.*,main.description AS description1, type.*

    FROM $maintable main

    LEFT JOIN dede_arctype type ON type.id = main.typeid

    LEFT JOIN $addontable addon ON addon.aid = main.id

    $where  $orderby";

$query = "SELECT addon.*, main.id AS aid,main.*,main.description AS description1, type.*

    FROM $maintable main

    LEFT JOIN dede_arctype type ON type.id = main.typeid

    LEFT JOIN $addontable addon ON addon.aid = main.id

    $where  $orderby";

{dede:datalist}

<?php

$fields['stime'] = GetDateTimeMk($fields['senddate']);

$fields['arcurl'] = GetArcUrl($fields['aid'],$fields['typeid'],$fields['senddate'],$fields['title'],$fields['ismake'],$fields['arcrank'],$fields['namerule'],$fields['typedir'],$fields['money']);

$fields['typeurl'] = GetTypeUrl($fields['typeid'],MfTypedir($fields['typedir']),$fields['isdefault'],$fields['defaultname'],

   $fields['ispart'],$fields['namerule2'],$fields['moresite'],$fields['siteurl'],$fields['sitepath']);

?>

...

{/dede:datalist}