flex 自动生成get 和 set的方法

<?xml version="1.0" encoding="utf-8"?> 
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute"> 
<mx:Script> 
<![CDATA[ 
import mx.controls.Alert; 
[Bindable] 
private var arr_comData:Array=["private","public","internal","dynamic","final"]; 
[Bindable 
] 
private var arr_varModel:Array=["String","int","uint","Boolean","Number","Object"]; 
private var result:String=""; 
private function bulid():void 
{ 
var str_result:String=""; 
var str_result_var:String=""; 
var str_temp:String=com_textinput.text; 
if(str_temp=="") 
{ 
Alert.show("You must input something "); 
} 
else 
{ 
   var myPattern2:RegExp=/\r\n/;//清除回车和换行符 
   str_temp=str_temp.replace(myPattern2,''); 
   var arr_temp:Array=str_temp.split(","); 

   var i:int=0; 
   var arr_len:int=arr_temp.length; 
   for(i=0;i<arr_len;i++) 
   { 
   var functionName:String=arr_temp[i]; 
   str_result_var=str_result_var+"\r"+com_classModel.selectedLabel+" var _"+functionName+":"+com_varModel.selectedLabel+";"; 
   str_result=str_result+"\r"+"public "+" function set "+functionName+"(value:"+com_varModel.selectedLabel+"):void\r{"; 
   str_result=str_result+"\r"+"  this._"+functionName+"="+"value"+";\r}"; 
   str_result=str_result+"\r"+"public"+" function get "+functionName+"():"+com_varModel.selectedLabel+"\r{"; 
   str_result=str_result+"\r"+"  return this._"+functionName+";\r}"; 
   } 
   result=str_result_var+str_result; 
   tx_show.text=result; 
} 
} 
private function clear():void 
{ 
tx_show.text=""; 
} 

]]> 
</mx:Script> 
<mx:Canvas width="100%" height="116" top="0" horizontalCenter="0"> 
<mx:ComboBox id="com_classModel" dataProvider="{arr_comData}" x="223" y="39"></mx:ComboBox> 
<mx:ComboBox id="com_varModel" dataProvider="{arr_varModel}" x="66" y="39"></mx:ComboBox> 
<mx:TextInput width="307" id="com_textinput" x="369" y="39"/> 
<mx:Label text="输入变量名字（以 逗号隔开）：" x="326.5" y="13"/> 
<mx:Button label="生成" width="83" click="bulid()" x="369" y="84"/> 
<mx:Button x="527" y="84" label="清空" click="clear()"/> 
<mx:Label text="选择变量类型：" x="18" y="13"/> 
<mx:Label text="选择变量封装性：" x="175" y="13"/> 
</mx:Canvas> 
<mx:TextArea height="335" width="378" id="tx_show" horizontalCenter="0" y="121"/> 
</mx:Application> 

 来自：http://hje.iteye.com/blog/282711