[原创]数字 格式化为千位分割的钱币

package format
{
 public class NumberFomat
 {
  public function NumberFomat()
  {
  }
  
  /**
   * 分割成钱币的样子 
   * @param num
   * @return 
   * 
   */  
  public static function format(num:int):String
  {
   var str:String = num.toString();
   var ary:Array = str.split("");
   var leng:int = ary.length;
   var index:int = 1;
   for(var i:int = leng - 1; i > 0 ; i--, index++)
   {
    if((index / 3) == 1)
    {
     index = 0;
     ary[i] = "," + ary[i];
    }
   }
   var str2:String = ary.join("");
   trace(str2)
   return str2;
  }
 }
}