[转] ActionScript Loader与URLLoad

AS3已经中Loader与URLLoader是两个比较容易混淆的类,特此区分.
应用范围:
Loader: swf,图片(jpg,png,gif)
URLLoader:文本文件(xml,php,jsp…)

使用方法
Loader:

loader.contentLoaderInfo.addEventListener(Event.COMPLETE, loadComplete);
private function loadComplete(event:Event):void
{ 
  trace("done");
  addChild(loader);
 } 

URLLoader:

xmlLoader.dataFormat = URLLoaderDataFormat.TEXT; 
xmlLoader.addEventListener(Event.COMPLETE,xmlLoaded); 
private function xmlLoaded(event:Event):void
 { 
  try 
    {
      myXML = XML(event.target.data);
      area.text=myXML;
    } 
   catch (e:TypeError)
   {
      area.text="Load faild:n"+e.message;
   }
}