as 3.0解析xml文档

今天看到一个同学写的现在贴出来希望给各位一些帮助．先我们看看xml 文档的格式，

<?xml version="1.0" encoding="utf-8"?>
<data>
   <img>
       <path>"img/11.jpg"</path>
       <txt>"这是第一张人物图"</txt>  
   </img>      
   <img>
       <path>"img/11.jpg"</path>
       <txt>"这是第二张人物图"</txt> 
   </img>
   <img>
       <path>"img/11.jpg"</path>
       <txt>"这是第三张人物图"</txt> 
   </img>
   <img>
       <path>"img/11.jpg"</path>
       <txt>"这是第四张人物图"</txt> 
   </img>
</data>

这是一个很简单的xml文件，下在我们用as3.0来读出我们想要的内容．

package {
 import flash.display.Sprite;
 import flash.net.*;
 import flash.events.*;
 import flash.utils.Timer;

 public class XMLRequest extends EventDispatcher {
  private var myArray:Array=new Array();
  private var requXML:XML;
  private var pathtxt:String;
  private var ttxt:String;
  private var loader:URLLoader;
  private var requ:URLRequest;
  

  public function XMLRequest() {
   loader=new URLLoader();
   requ=new URLRequest("xx.xml");
   listener(loader);
   try {
    loader.load(requ);
   } catch (error:Error) {
    trace("Unable to load requested document.!");
   }
   trace("readXML.end....",myArray);
  }
  public function readXML():Array {
   return myArray;
  }
  private function listener(lo:IEventDispatcher):void {
   lo.addEventListener(ProgressEvent.PROGRESS,progerss);
   lo.addEventListener(Event.COMPLETE,loadcomplete);
  }
  private function loadcomplete(event:Event):void {   
   requXML=new XML(event.target.data);
   for (var k in requXML..img) {
    pathtxt=requXML..img[k].path;
    ttxt=requXML..img[k].txt;
    myArray.push(pathtxt,ttxt);
   }
   dispatchEvent(new Event(Event.COMPLETE));
  }
  private function progerss(event:ProgressEvent):void {
   //trace( "333progressHandler loaded:" + event.bytesLoaded + " total: " + event.bytesTotal);
  }
 }
}