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<div class="codetitle"><a style="CURSOR: pointer" data="50436" class="copybut" id="copybut50436" onclick="doCopy('code50436')"> 代码如下:<div class="codebody" id="code50436">
<?php
/*
委托模式 示例
@create_date: 2010-01-04
*/
class PlayList
{
var $_songs = array();
var $_object = null;
function PlayList($type)
{
$object = $type."PlayListDelegation";
$this->_object = new $object();
}
function addSong($location,$title)
{
$this->_songs[] = array("location"=>$location,"title"=>$title);
}
function getPlayList()
{
return $this->_object->getPlayList($this->_songs);
}
}
class mp3PlayListDelegation
{
function getPlayList($songs)
{
$aResult = array();
foreach($songs as $key=>$item)
{
$path = pathinfo($item['location']);
if(strtolower($item['extension']) == "mp3")
{
$aResult[] = $item;
}
}
return $aResult;
}
}
class rmvbPlayListDelegation
{
function getPlayList($songs)
{
$aResult = array();
foreach($songs as $key=>$item)
{
$path = pathinfo($item['location']);
if(strtolower($item['extension']) == "rmvb")
{
$aResult[] = $item;
}
}
return $aResult;
}
}
$oMP3PlayList = new PlayList("mp3");
$oMP3PlayList->getPlayList();
$oRMVBPlayList = new PlayList("rmvb");
$oRMVBPlayList->getPlayList();
?>
（编辑：安卓应用网）
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