function fun(data:int):String {
var str:String=String(data);
var b:String=new String();
var c:String=new String();
var d:String=new String()
var e:String=new String()
var f:String=new String()
for(var j:int=str.length;j>=0;j--){
e+=str.charAt(j)
}
for (var i:int=0; i<e.length; i+=3) {
c+=b.concat(","+e.substring(i,i+3));
}
if(c.charAt(0)==","){
d=c.substring(1,c.length)
}else{
d=c
}
for(var n:int=d.length;n>=0;n--){
f+=d.charAt(n)
}
return f;
}
trace(fun(121312324245));
原理是这样，需要优化。
<?xml version="1.0" encoding="utf-8"?>
<!-- Simple example to demonstrate the CurrencyFormatter. -->
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml">
<mx:Script>
<![CDATA[
import mx.events.ValidationResultEvent;
private var vResult:ValidationResultEvent;
// Event handler to validate and format input.
private function Format():void {
vResult = numVal.validate();
if (vResult.type==ValidationResultEvent.VALID) {
var temp:Number=Number(priceUS.text);
formattedUSPrice.text= usdFormatter.format(temp);
}
else {
formattedUSPrice.text="";
}
}
]]>
</mx:Script>
<mx:CurrencyFormatter id="usdFormatter" precision="2"
currencySymbol=" " decimalSeparatorFrom="."
decimalSeparatorTo="." useNegativeSign="true"
useThousandsSeparator="true" alignSymbol="left"/>
<mx:NumberValidator id="numVal" source="{priceUS}" property="text"
allowNegative="true" domain="real"/>
<mx:Panel title="CurrencyFormatter Example" width="75%" height="75%"
paddingTop="10" paddingLeft="10" paddingRight="10" paddingBottom="10">
<mx:Form>
<mx:FormItem label="Enter U.S. dollar amount:">
<mx:TextInput id="priceUS" text="" width="50%"/>
</mx:FormItem>
<mx:FormItem label="Formatted amount: ">
<mx:TextInput id="formattedUSPrice" text="" width="50%" editable="false"/>
</mx:FormItem>
<mx:FormItem>
<mx:Button label="Validate and Format" click="Format();"/>
</mx:FormItem>
</mx:Form>
</mx:Panel>
</mx:Application>