C#获取汉字的拼音的首拼

public string getSpell(string cn)

{

string tempChar = "";

char[] temp = cn.ToCharArray();

for (int j = 0; j < temp.Length; j++)

{

byte[] arrCN = Encoding.Default.GetBytes(temp[j].ToString());

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)

{

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

}

}

//tempChar += "?";

}

else

tempChar += cn;

}

return tempChar;

}