添加事件的两种方式

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以<mx:Button>为例

第一种方式：可以在标签中直接添加click事件处理程序如下代码：

<mx:Applicationxmlns:mx="http://www.adobe.com/2006/mxml"layout="vertical"><mx:Button id="btn" label="Show Names"click="showNames(event)"/><mx:Script><![CDATA[private function showNames(evt:MouseEvent):void{var temp:Array =new Array("George","Tim","Alex","Dean");trace(temp.toString());}]]></mx:Script></mx:Application>

第二种方式：也可以在ActionScript 中通过Button 实例的addEventListener 方法。

<mx:Applicationxmlns:mx="http://www.adobe.com/2006/mxml"layout="vertical"creationComplete="initApp(event);"><mx:Button id="btn" label="Show Names"/><mx:Script><![CDATA[import mx.events.FlexEvent;private function initApp(evt:FlexEvent):void{btn.addEventListener(MouseEvent.CLICK,showNames);btn.addEventListener(MouseEvent.CLICK,showTitles);}private function showNames(evt:MouseEvent):void{var temp:Array =new Array("George","Tim","Alex","Dean");trace(temp.toString());}private function showTitles(evt:MouseEvent):void{var temp:Array = new Array("Director","Vice-President","President","CEO");trace(temp.toString());}]]></mx:Script></mx:Application>