加载外部文件

//加载XML
var myXML:XML = new XML();
var XML_URL:String = "xx.xml";
var myXMLURL:URLRequest = new URLRequest(XML_URL);
var myLoader:URLLoader = new URLLoader(myXMLURL);
myLoader.addEventListener(Event.COMPLETE, xmlLoaded);
function xmlLoaded(evtObj:Event)
{
	myXML = XML(myLoader.data);
	trace("数据装载完成.");
	trace(myXML);
} 

import flash.display.Bitmap;

//加载外部图片
var myImg:URLRequest = new URLRequest("xx.jpg");
var loader:Loader = new Loader  ;
loader.load(myImg);
//loader.load(new URLRequest("xx.jpg"));
loader.contentLoaderInfo.addEventListener(Event.COMPLETE,loadComplete);
function loadComplete(e:Event):void
{
	var a:Bitmap = loader.content as Bitmap;
	trace("图片的宽度---"+a.width);
	loader.contentLoaderInfo.removeEventListener(Event.COMPLETE,loadComplete);
	addChild(loader);
	trace("加载完成");
}

/*加载外部swf文件*/
var loader:Loader = new Loader();
var mySwf:URLRequest = new URLRequest("a.swf");
loader.load(mySwf);

loader.contentLoaderInfo.addEventListener(Event.COMPLETE,onComplete);
loader.contentLoaderInfo.addEventListener(ProgressEvent.PROGRESS,onProgress);
loader.contentLoaderInfo.addEventListener(IOErrorEvent.IO_ERROR,onError);

function onProgress(e:ProgressEvent):void
{
	
	trace("已经下载"+Math.round((e.bytesLoaded)/(e.bytesTotal)*100) + "%");
}
function onComplete(e:Event):void
{
	addChild(loader);
	trace("加载完成");
}
function onError(e:IOErrorEvent):void
{
	trace("加载出错");
}

/*处理xml
abc.xml
<info>
    <user id="1">
        <name>jimluck</name>
        <email>luckstarzb@173.com</email>
        <age>33</age>
    </user>    
    <user id="2">
        <name>john</name>
        <email>johnluck@sohu.com</email>
        <age>21</age>        
    </user>    
    <user id="3">
        <name>lucy</name>
        <email>lucy@163.com</email>
        <age>18</age>
    </user>    
</info>
*/


var myXml:XML = new XML();
var XML_URL:String = "abc.xml";
var myXMLURL:URLRequest = new URLRequest(XML_URL);
//如果省略该参数，则不开始加载操作。 如果已指定参数，则立即开始加载操作
var myLoader:URLLoader = new URLLoader(myXMLURL);
myLoader.addEventListener(Event.COMPLETE, xmlLoaded);
function xmlLoaded(evtObj:Event)
{
    myXml =new XML(myLoader.data);
	trace(myXml.user[0].@id);//1
    trace(myXml.user[0].name);//jimluck
    trace(myXml.user[1].name);//john
    trace(myXml.user[2].name);//lucy
    //多节点时结果：
    trace(myXml.user.name);
	//<name>jimluck</name>
    //<name>john</name>
    //<name>lucy</name>
trace(myXml.user.name[0]);
    //输出id=3的user节点的name值
    trace(myXml.user.(@id=="3").name);//lucy
    //输出name值为john的age节点值
    trace(myXml.user.(name=="john").age);//21
}

//1. myXml.user[0]还等同于myXml.child(0),如：
   // trace(myXml.child(0).name);
   // trace(myXml.child(0).email);
// 2. 可以通过for each in来遍历xml文档：
    /*for each (var property:XML in myXml.user)
    {
        var uname:String = String(property.name);
        var uemail:String = String(property.email);
        total += 1;
        trace("用户名"+uname+"  邮件"+uemail)
    }
    trace("用户数：", total);*/

/*结果：
用户名jimluck  邮件luckstarzb@173.com
用户名john  邮件johnluck@sohu.com
用户名lucy  邮件lucy@163.com
用户数： 3*/

//加载音乐
var sound = new Sound  ;
var mySound:URLRequest = new URLRequest("xx.mp3");
sound.load(mySound);
sound.addEventListener(Event.COMPLETE,completeHandler);
function completeHandler(e:Event):void
{
trace("音乐加载完成");
sound.play();
}

var myxml:XML = 
<root>
    <data attr="attribute1">this is the string1</data>
    <data attr="attribute2">this is the string2</data>
</root>;
myxml.data[0]. @ attr1 = "这是新创建的属性";
myxml.data[1] = "第2个节点的值改变了！";
myxml.data[2] = "第3个节点的值改变了！";
delete myxml.data[1];
trace(myxml);