/// <summary>

    /// 数字转中文

    /// </summary>

    /// <param name="number">eg: 22</param>

    /// <returns></returns>

    public string NumberToChinese(int number)

    {

        string res = string.Empty;

        string str = number.ToString();

        string schar = str.Substring(, );

        switch (schar)

        {

            case "":

                res = "一";

                break;

            case "":

                res = "二";

                break;

            case "":

                res = "三";

                break;

            case "":

                res = "四";

                break;

            case "":

                res = "五";

                break;

            case "":

                res = "六";

                break;

            case "":

                res = "七";

                break;

            case "":

                res = "八";

                break;

            case "":

                res = "九";

                break;

            default:

                res = "零";

                break;

        }

        if (str.Length > )

        {

            switch (str.Length)

            {

                case :

                case :

                    res += "十";

                    break;

                case :

                case :

                    res += "百";

                    break;

                case :

                    res += "千";

                    break;

                case :

                    res += "万";

                    break;

                default:

                    res += "";

                    break;

            }

            res += NumberToChinese(int.Parse(str.Substring(, str.Length - )));

        }

        return res;

    }

Console.WriteLine(NumberToChinese(22));