人民幣大小寫

using System;
using System.Collections;
using System.Text;

public class MyClass
{
 public static void Main()
 {
  Console.WriteLine(FormatRMB(101010101010.23));
 }
 
 public static string FormatRMB( double intRmb )
 {
   const string UNIT = "分角元十百千萬十百千仡十百千萬";
   const string UPPER = "零壹貳毿肆伍陸柒捌玖";
   string strRmb = Math.Round(intRmb*100).ToString();
   if( strRmb.Length > UNIT.Length ) return "";
   StringBuilder result = new StringBuilder(strRmb.Length*2+1);
   bool isZero = false ;
   for( int i = 0 ,j = strRmb.Length-1 ; i <= j ; i ++ )
    {
     if ( strRmb[i] > 48 )
    {
      if( isZero )
    result.Append(UPPER[0]);
    result.Append(UPPER[strRmb[i]-48]);
    result.Append(UNIT[j-i]);
    isZero = false ;
   }
   else
      {
     isZero = true ;
     if( UNIT[j-i] == '元' || UNIT[j-i] == '萬' || UNIT[j-i] == '仡' )
      {
        result.Append(UNIT[j-i]);
     isZero = false ;
      }
   
   }
 
 
  }
  if( result[result.Length -1] == '元')
    result.Append('整');
   
    return result.ToString().Replace("壹十","十");
   }
}