漢字のピンインを得る

漢字の最初のピンインを得る:例えばstring key=GetChineseSpell(「テスト用」);中keyの値はCSYD

#region GetChineseSpell 

    // 

    static public string GetChineseSpell(string strText)

    {

        int len = strText.Length;

        string myStr = "";

        for (int i = 0; i < len; i++)

        {

            if (getCheck(strText.Substring(i, 1)))

                myStr += getSpell(strText.Substring(i, 1));

        }

        return myStr;

    }



    protected static bool getCheck(string text)

    {

        return Regex.IsMatch(text, "[\u4e00-\u9fa5]");

    }



    static public string[] GetChineseSpell(string[] strText)

    {

        int len = strText.Length;

        string[] myStr = null;

        for (int i = 0; i < len; i++)

        {

            myStr[i] = getSpell(strText[i]);

        }

        return myStr;

    }



    static public string getSpell(string cnChar)

    {

        byte[] arrCN = Encoding.Default.GetBytes(cnChar);

        if (arrCN.Length > 1)

        {

            int area = (short)arrCN[0];

            int pos = (short)arrCN[1];

            int code = (area << 8) + pos;

            int[] areacode = { 45217, 45253, 45761, 46318, 46826, 47010, 47297, 47614, 48119, 48119, 49062, 49324, 49896, 50371, 50614, 50622, 50906, 51387, 51446, 52218, 52698, 52698, 52698, 52980, 53689, 54481 };

            for (int i = 0; i < 26; i++)

            {

                int max = 55290;

                if (i != 25) max = areacode[i + 1];

                if (areacode[i] <= code && code < max)

                {

                    return Encoding.Default.GetString(new byte[] { (byte)(65 + i) });

                }

            }

            return "*";

        }

        else return cnChar;

    }

    #endregion