flex 自动生成switch case 的工具

<?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;
private function bulit():void
{
var str_result:String;
var str_temp:String="";
if(NumCount.text=="")
{
Alert.show("input a number");
}
else
{
var num:int=int(NumCount.text),i:int;
for(i=0;i<num;i++)
{
str_temp=str_temp+"\r case "+i.toString()+" :\r"+" //Alert.show(\""+i.toString()+"\");\r"+" {\r"+
" viewstack1.selectedIndex="+i.toString()+";\r }\r"+" break;\r" ;
}
txArea.text="switch()\r{"+str_temp+" default:\r break;\r"+"}";
}



}
]]>
</mx:Script>
<mx:Button x="568" y="36" label="生成" click="bulit()"/>
<mx:TextArea height="528" id="txArea" width="499" x="262.5" y="75"/>
<mx:TextInput x="380" y="36" id="NumCount"/>
<mx:Label x="414" y="10" text="输入case 个数："/>

</mx:Application>