Question

as3 如何获得xml文件的节点数量

Answer 1

如一个example.xml文件如下：
<books>
<book id='1' name='book1'/>
<book id='2' name='book2'/>
</book>

那么要先加载该xml再获取其长度
import flash.net.URLLoader;
import flash.net.URLRequest;
import flash.event.Event;

var loader:URLLoader = new URLLoader(new URLRequest("example.xml");
loader.addEventListener(Event.COMPLETE,completeHandler);

function completeHandler(e:Event):void{
var getLoader:URLLoader = e.target as URLLoader;
if(getLoader!=null){
var myxml = new XML(getLoader.data);
var nodes:XMLList = myXML.child("books");
// 获取books下的节点数
var len:Number = nodes.length();
}
}