flex XML 作为数据源的实例（TESTED）

XML 作为数据源的实例（TESTED）
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" preinitialize="preInit()" fontSize="12" height="500">
        <mx:Script>
        <![CDATA[
            import mx.collections.XMLListCollection;
            import mx.events.MenuEvent;
            import mx.controls.Alert;
                       
            import flash.net.URLLoader;
            import flash.net.URLRequest;
            import flash.events.Event;
                            
            [Bindable]
            public var selectedNode:XML;
            public var resultXML:XML;
              
            public function preInit():void
            {
                //var targetURL:String="http://10.1.0.33/temp/myTxt.xml";