遍历xml数据,展示三层树

<?xml version="1.0" encoding="UTF-8"?>
<menuList>
	<menu name="菜单1" url="download.php" swf="icon1.swf">
		<cmenu name="闯关1" url="onservice.php">
		   <award id="10001" lv="1"/>
		   <award id="10002" lv="2"/>
		</cmenu>
		<cmenu name="闯关2" url="onservice1.php"/>
		<cmenu name="闯关3" url="onservice2.php"/>
		<cmenu name="闯关4" url="onservice.php">
		   <award id="10003" lv="1"/>
		   <award id="10004" lv="2"/>
		</cmenu>
	</menu>
	<menu name="菜单2" url="news.php" swf="icon1.swf">
		<cmenu name="INTEL" url="onservice.php"/>
		<cmenu name="AMD" url="onservice.php"/>
		<cmenu name="XFX" url="onservice.php"/>
		<cmenu name="MSI" url="onservice.php"/>
	</menu>
</menuList>

package{
  import flash.display.*;
  import flash.events.*;
  import flash.net.*;
  import flash.text.*;
  public class menu extends Sprite {
    private var url:URLLoader;
    private var sprite:Sprite;
    private var mainsprite:Sprite;
    private var test:TextField;
    private var ctest:TextField;
    private var xml:XML;
    private var _xml:XML;
    public function menu(){
       url = new URLLoader;
       url.load(new URLRequest("MenuList.xml"));
       url.addEventListener(Event.COMPLETE,handcomplete);
    }

    private function handcomplete(event:Event){
       xml = new XML(event.target.data);
       _xml = xml;
       for(var i:int=0;i<xml.menu.length();i++){
          var mname:String=xml.menu[i].@name;
	  test = new TextField;
	  test.border=true;
	  test.selectable=false;
	  test.text=mname;
	  test.x=20;
	  test.y=i*test.height+20;
	  test.name=String(i); //记录下标
	  test.addEventListener(MouseEvent.CLICK,dispChildMenu);
	  addChild(test);
       }
    }

    private function dispChildMenu(event:MouseEvent):void
    {
        if(sprite){
	  for (var k:int=sprite.numChildren - 1; k >=0; k--){
	     sprite.removeChildAt(k);
	  }
	}else{
	  sprite = new Sptite();
	}
	
	for(var j:int=this.numChildren-1;j>=0;j--){
	   if(j>event.target.name){
	     this.removeChildAt(j);
	   }
	}

	addChild(sprite);
        var len:Number = new Number(event.target.name);
        var _mc:MovieClip;
	if(xml.menu[len].length()>0){
	   for(j=0;j<xml.menu[len].cmenu.length();j++){
	     _mc = new MovieClip();
	     var cname:String=xml.menu[len].cmenu[j].@name;
	     ctest = new TextField;
	     ctest.border=true;
	     ctest.autoSize="left";
	     _mc.x = event.target.x;
             _mc.y = ctest.height*(j+1);
	   var awardData : Array = new Array();   //重要
	     for(var m:int=0;m<xml.menu[len].cmenu[j].award.length();m++){  //重要
	        var tob:Object = new Object();                          //重要
		for each(var d in xml.menu[len].cmenu[j].award[m].attributes()){  //重要
		  tob[String(d.name())] = d;                              //重要
		}
		awardData.push(tob);                                      //重要
	     }

	     _mc.awarddata = awardData;
	     _mc.addChild(ctest);
	     _mc.addEventListener(MouseEvent.CLICK,dispThirdMenu);
	     sprite.addChild(_mc);
	   }
	
	}

	for(var i:int=0;i<_xml.menu.length();i++){
	   if(i>event.target.name){
	      var mname = _xml.menu[i].@name;
	      test = new TextField;
	      test.border=true;
	      test.autoSize="left";
	      test.text = mname;
	      test.x=20;
	      test.y = i*test.height+76;
	      test.name=String(i);
	      test.addEventListener(MouseEvent.CLICK,dispChildMenu);
	      addChild(test);
	   
	   }
	
	}

    }

    function dispThirdMenu(event:MouseEvent):void{
       for(var k:int=0;k<event.currentTarget.awarddata.length;k++){
           trace(event.currentTarget.awarddata[k].id);
	   trace(event.currentTarget.awarddata[k].lv);
       
       }
    
    }
  
  
  }

}