给金额千位数加，和去掉千位数的，

<%!
   public String dou(double d) {

      DecimalFormat df = new DecimalFormat();
      df.setMaximumFractionDigits(2);//这里是小数位
      String format = df.format(d);
      String removeStr = ",";//去掉千分符号
      String replace = format.replace(removeStr, "");
      return replace;
   }

   public String addqian(String a){
      String m="";
      if(a.isEmpty()){
         return m;
      }
      Double n = Double.valueOf(a);
      DecimalFormat df = new DecimalFormat("#,###.##");
      m = df.format(n);
      return m;
   }

   public Double fu(String a){
      Double n = Double.valueOf(a);
      return n;
   }

%>