Flex金额转大写函数

　　从一个VFP函数转过来的，调用：transformAmount(231010045.31) 。 代码如下：

 private function transformAmount(amount:Number):String
 {
  var result:String = "";
  var number:Number = 0;
  var i:int = 0;
  if (isNaN(amount) == true)
   return result;
  result = (amount < 0, "负", "");
  number = Math.round(amount * 100);
  for (i = number.toString().length - 1; i >= 0; i--)
  {
   result = result + 
    "零壹贰叁肆伍陆柒捌玖".substr(Math.floor(number / Math.pow(10, i)), 1) + 
    "分角元拾佰仟万拾佰仟亿拾佰仟万".substr(i, 1);
   number = number % (Math.pow(10, i));
  }
  result = STRTRAN(STRTRAN(STRTRAN(STRTRAN(STRTRAN(result, "零仟", "零"), "零佰", "零"), 
   "零拾", "零"), "零角", "零"), "零分", "整");
  result = STRTRAN(STRTRAN(STRTRAN(STRTRAN(STRTRAN(result, "零零", "零"), "零零", "零"), 
   "零亿", "亿"), "零万", "万"), "零元", "元");
  result = (result == "整" ? "零元整" : STRTRAN(STRTRAN(result, "亿万", "亿"), "零整", "整"));
  return result;
 }
 
 private function STRTRAN(strSearched:String, strExpressionSought:String, 
  strReplacement:String):String
 {
  var result:String = null;
  var i:int = 0;
  if (strSearched == null)
   return result;
  result = "";
  for (i = 0; i < strSearched.length; i++)
   if (strSearched.substr(i, strExpressionSought.length) == strExpressionSought)
   {
    result = result + strReplacement;
    i = i + strExpressionSought.length - 1;
   }
   else
   {
    result = result + strSearched.substr(i, 1);
   }
  return result;
 }