flex计算器

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute">
<mx:Script>
  <![CDATA[
//  相加函数
    internal function Add():void
    {
      var iAnum:int = parseInt(A.text);
      var iBnum:int = parseInt(B.text);
      var iResult:int = iAnum+iBnum;
      RESULT.text=String(iResult);
      
    }
  ]]>
</mx:Script>
  <mx:TextArea x="209" y="82" id="A"/>
  <mx:TextArea x="209" y="186" id="B"/>
  <mx:Button x="209" y="289" label="相加" width="160" click="Add()"/>
  <mx:TextArea x="441" y="267" id="RESULT"/>
</mx:Application>

用于计算两个数的和。效果图如下