c#把漢字轉化成全拼音函數（全拼）

/// <summary>
        /// 把漢字轉換成拼音(全拼)
        /// </summary>
        /// <param name="hzString">漢字字符串</param>
        /// <returns>轉換後的拼音(全拼)字符串study.pctoday.net.cn</returns>
        public static string ConvertE(string hzString)
        {
            // 匹配中文字符
            Regex regex = new Regex("^[u4e00-u9fa5]$");
            byte[] array = new byte[2];
            string pyString = "";
            int chrAsc = 0;
            int i1 = 0;
            int i2 = 0;
            char[] noWChar = hzString.ToCharArray();

            for (int j = 0; j < noWChar.Length; j++)
            {
                // 中文字符
                if (regex.IsMatch(noWChar[j].ToString()))
                {
                    array = System.Text.Encoding.Default.GetBytes(noWChar[j].ToString());
                    i1 = (short)(array[0]);
                    i2 = (short)(array[1]);
                    chrAsc = i1 * 256 + i2 - 65536;
                    if (chrAsc > 0 && chrAsc < 160)
                    {
                        pyString += noWChar[j];
                    }
                    else
                    {
                        // 修正部分文字
                        if (chrAsc == -9254)  // 修正“圳”字
                            pyString += "Zhen";
                        else
                        {
                            for (int i = (pyValue.Length - 1); i >= 0; i--)
                            {
                                if (pyValue[i] <= chrAsc)
                                {
                                    pyString += pyName[i];
                                    break;
                                }
                            }
                        }
                    }
                }
                // 非中文字符
                else
                {
                    pyString += noWChar[j].ToString();
                }
            }
            return pyString;
        }
        #region 把漢字轉化成全拼音
        private static int[] pyValue = new int[]
        {
            -