金额大小写转换正则

    /// <summary>
    /// 人民币金额小写转大写
    /// </summary>
    /// <param name="moneyAmount">小写金额</param>
    /// <returns>大写金额</returns>
    public  string getRMB(decimal moneyAmount)
    {
        string s = moneyAmount.ToString("#L#E#D#C#K#E#D#C#J#E#D#C#I#E#D#C#H#E#D#C#G#E#D#C#F#E#D#C#.0B0A");//d + "\n" +
        string d = Regex.Replace(s, @"((?<=-|^)[^1-9]*)|((?'z'0)[0A-E]*((?=[1-9])|(?'-z'(?=[F-L\.]|$))))|((?'b'[F-L])(?'z'0)[0A-L]*((?=[1-9])|(?'-z'(?=[\.]|$))))", "${b}${z}");
        string res = Regex.Replace(d, ".", delegate(Match m) { return "负元空零壹贰叁肆伍陆柒捌玖空空空空空空空分角拾佰仟萬億兆京垓秭穰"[m.Value[0] - '-'].ToString(); });
        return res;
    }