flex中的主程式mxml檔案調用相應的ActionScript

 <?xml version="1.0"?>

<!-- usingas/AccessingPackagedClasses.mxml -->

<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml">

<mx:Script><![CDATA[

           import MyPackage.Util.MyClass;

                   private var mc:MyClass = new MyClass;

]]></mx:Script>

<mx:Button id="myButton" label="Click Me"

                    click="myButton.label=mc.returnAString()"/>

</mx:Application>