一个简单的递归调用
下面是一个递归调用，注意arguments.callee()方法
<?xml version="1.0" encoding="utf-8"?><s:Application xmlns:fx="http://ns.adobe.com/mxml/2009" xmlns:s="library://ns.adobe.com/flex/spark" xmlns:mx="library://ns.adobe.com/flex/mx" minWidth="955" minHeight="600"><s:layout><s:BasicLayout/></s:layout><fx:Declarations><!-- 将非可视元素（例如服务、值对象）放在此处 --></fx:Declarations><fx:Script><![CDATA[import mx.events.TreeEvent;private function handleItemClose(evt:TreeEvent):void {tree1.expandChildrenOf(evt.item, false);}private function init():void {this.tree1.addEventListener(TreeEvent.ITEM_CLOSE, handleItemClose);}private function getAllChildLabel():void {if(tree1.selectedItem) {var allChild:Array = [];var xml:XML = tree1.selectedItem as XML;this.getAllChild(allChild, xml);this.textArea1.text = allChild.join("\n");}}private function getAllChild(allChild:Array, xml:XML):void {allChild.push(xml.@label);if(xml.children().length()>0) {for each(var node:XML in xml.children())arguments.callee(allChild,node);}}private function getAllParentLabel():void{if(tree1.selectedItem) {var allParent:Array = [];var xml:XML = tree1.selectedItem as XML;this.getAllParent(allParent, xml);this.textArea1.text = allParent.join("\n");}}private function getAllParent(allParent:Array, xml:XML):void {allParent.push(xml.@label);if(xml.parent()) {arguments.callee(allParent, xml.parent());}}]]></fx:Script><mx:Tree id="tree1" labelField="@label" showRoot="true" width="300" height="300"><mx:XMLListCollection id="MailBox"><fx:XMLList><folder label="Mail"><folder label="INBOX"/><folder label="Personal Folder"><Pfolder label="Business" /><Pfolder label="Demo" /> <Pfolder label="Personal" isBranch="true" /> <Pfolder label="Saved Mail" /> </folder><folder label="Sent" /><folder label="Trash" /></folder></fx:XMLList></mx:XMLListCollection></mx:Tree><mx:Button id="button1" x="201" y="308" label="得到选择节点下的所有子节点label值" click="getAllChildLabel()" /><mx:Button id="button2" x="201" y="338" label="得到选择节点的所有父节点label值" click="getAllParentLabel()" /><mx:TextArea id="textArea1" x="317" y="2" width="276" height="298"/></s:Application>另一个例子：
private function recursiveHandler(list:XMLList,currNode:String,templates:XML):XML{for each(var j:XML in list){if(currNode==j.derivedFrom){var xmlResult:XML = <{j.alias} label={j.alias}/>;templates.appendChild(xmlResult);delete list[j.childIndex()];arguments.callee(list,j.alias,xmlResult);}}return templates;}参考 http://topic.csdn.net/u/20100518/10/20978562-cfa5-4264-89eb-d7a8f59afc09.html