C# 获取中文首字母
/// <summary> /// 获取中文首字母 /// </summary>
/// <param name="ChineseStr">中文字符串</param>
/// <returns>首字母</returns>
public static string GB2Spell(string ChineseStr) {
string Capstr = string.Empty;
byte[] ZW = new byte[2];
long ChineseStr_int;
string CharStr, ChinaStr = "";
for (int i = 0; i <= ChineseStr.Length - 1; i++) {
CharStr = ChineseStr.Substring(i, 1).ToString();
ZW = System.Text.Encoding.Default.GetBytes(CharStr); // 得到汉字符的字节数组
if (ZW.Length == 2) {
int i1 = (short)(ZW[0]);
int i2 = (short)(ZW[1]);
ChineseStr_int = i1 * 256 + i2;
//table of the constant list
// 'A'; //45217..45252
// 'B'; //45253..45760
// 'C'; //45761..46317
// 'D'; //46318..46825
// 'E'; //46826..47009
// 'F'; //47010..47296
// 'G'; //47297..47613
// 'H'; //47614..48118
// 'J'; //48119..49061
// 'K'; //49062..49323
// 'L'; //49324..49895
// 'M'; //49896..50370
// 'N'; //50371..50613
// 'O'; //50614..50621
// 'P'; //50622..50905
// 'Q'; //50906..51386
// 'R'; //51387..51445
// 'S'; //51446..52217
// 'T'; //52218..52697
//没有U,V
// 'W'; //52698..52979
// 'X'; //52980..53640
// 'Y'; //53689..54480
// 'Z'; //54481..55289
if ((ChineseStr_int >= 45217) && (ChineseStr_int <= 45252)) { ChinaStr = "a"; }
else if ((ChineseStr_int >= 45253) && (ChineseStr_int <= 45760)) { ChinaStr = "b"; }
else if ((ChineseStr_int >= 45761) && (ChineseStr_int <= 46317)) { ChinaStr = "c"; } else if ((ChineseStr_int >= 46318) && (ChineseStr_int <= 46825)) { ChinaStr = "d"; } else if ((ChineseStr_int >= 46826) && (ChineseStr_int <= 47009)) { ChinaStr = "e"; } else if ((ChineseStr_int >= 47010) && (ChineseStr_int <= 47296)) { ChinaStr = "f"; } else if ((ChineseStr_int >= 47297) && (ChineseStr_int <= 47613)) { ChinaStr = "g"; } else if ((ChineseStr_int >= 47614) && (ChineseStr_int <= 48118)) { ChinaStr = "h"; }
else if ((ChineseStr_int >= 48119) && (ChineseStr_int <= 49061)) { ChinaStr = "j"; } else if ((ChineseStr_int >= 49062) && (ChineseStr_int <= 49323)) { ChinaStr = "k"; } else if ((ChineseStr_int >= 49324) && (ChineseStr_int <= 49895)) { ChinaStr = "l"; } else if ((ChineseStr_int >= 49896) && (ChineseStr_int <= 50370)) { ChinaStr = "m"; } else if ((ChineseStr_int >= 50371) && (ChineseStr_int <= 50613)) { ChinaStr = "n"; } else if ((ChineseStr_int >= 50614) && (ChineseStr_int <= 50621)) { ChinaStr = "o"; } else if ((ChineseStr_int >= 50622) && (ChineseStr_int <= 50905)) { ChinaStr = "p"; } else if ((ChineseStr_int >= 50906) && (ChineseStr_int <= 51386)) { ChinaStr = "q"; } else if ((ChineseStr_int >= 51387) && (ChineseStr_int <= 51445)) { ChinaStr = "r"; } else if ((ChineseStr_int >= 51446) && (ChineseStr_int <= 52217)) { ChinaStr = "s"; } else if ((ChineseStr_int >= 52218) && (ChineseStr_int <= 52697)) { ChinaStr = "t"; } else if ((ChineseStr_int >= 52698) && (ChineseStr_int <= 52979)) { ChinaStr = "w"; } else if ((ChineseStr_int >= 52980) && (ChineseStr_int <= 53640)) { ChinaStr = "x"; } else if ((ChineseStr_int >= 53689) && (ChineseStr_int <= 54480)) { ChinaStr = "y"; } else if ((ChineseStr_int >= 54481) && (ChineseStr_int <= 55289)) { ChinaStr = "z"; }
} else
Capstr += CharStr;
Capstr += ChinaStr;
}
return Capstr;
}