获取汉字第一个拼音 c# asp.net 2.0

/**//// <summary>


/// 获取汉字第一个拼音


/// </summary>


/// <param name="input"></param>


/// <returns></returns>


static public string getSpells(string input)




...{




...#region


int len = input.Length;


string reVal = "";


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




...{


reVal += getSpell(input.Substring(i, 1));


}


return reVal;


#endregion


}




static public string getSpell(string cn)




...{




...#region


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


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 cn;


#endregion


}