C# 取中文漢字的第一個拼音字母

public class ChsSpell
    ...{
        /**//// <summary>
        /// 取中文漢字的第一個拼音字母
        /// </summary>
        /// <param name="strText">中字漢字</param>
        /// <returns>大寫拼音首字母</returns>
        public string GetChsSpell(string strText)
        ...{
            int len = strText.Length;
            string myStr = "";
            for(int i=0;i<len;i++)
            ...{
                myStr +=this.getSpell(strText.Substring(i,1));
            }
            return myStr;
        }


        private 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;
        }
    }