dedecms添加rss订阅功能实现代码

<?php 
require_once (dirname(__FILE__) . "/include/common.inc.php"); 
require_once DEDEINC."/arc.partview.class.php"; 
$pv = new PartView(); 
$pv->SetTemplet($cfg_basedir . $cfg_templets_dir . "/default/rssmap.htm"); 
header("Content-type:application/xml"); 
$pv->Display(); 
?> 

<?xml version="1.0" encoding="utf-8" ?> 
<rss version="2.0"> 
<channel> 
<title>{dede:global.cfg_webname/}</title> 
<link>{dede:global.cfg_basehost/}</link> 
<description>{dede:global.cfg_description/}</description> 
<language>zh-cn</language> 
<generator>{dede:global.cfg_webname/}</generator> 
<webmaster>{dede:global.cfg_adminemail/}</webmaster> 
{dede:arclist row='20' col='1' titlelen='100' orderby='pubdate'} 
<item> 
<link>http://www.dedecode.com[field:arcurl/]</link> 
<title><![CDATA[[field:title function='html2text(@me)'/]]]></title> 
<author>[field:writer/]</author> 
<category>[field:typename/]</category> 
<pubDate>[field:pubdate function='strftime("%a, %d %b %Y %H:%M:%S +0800",@me)'/]</pubDate> 
<guid>http://www.dedecode.com[field:arcurl/]</guid> 
<description><![CDATA[[field:description function='html2text(@me)'/] ... ]]></description> 
</item> 
{/dede:arclist} 
</channel> 
</rss>