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  • .NET获取汉字首字母

    /// <summary>
    /// 获取汉字首字母(可包含多个汉字)
    /// </summary>
    /// <param name="strText"></param>
    /// <returns></returns>
    public string GetChineseSpell(string strText)
    {
    int len = strText.Length;
    string myStr = "";
    for (int i = 0; i < len; i++)
    {
    myStr += getSpell(strText.Substring(i, 1));
    }
    return myStr;
    }

    public 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;
    }

    ===============================================================================================
    /// <summary>
    /// 获取第一个汉字的首字母,只能输入汉字
    /// </summary>
    /// <param name="c"></param>
    /// <returns></returns>
    public string GetPYChar(string c)
    {
    byte[] array = new byte[2];
    array = System.Text.Encoding.Default.GetBytes(c);
    int i = (short)(array[0] - '') * 256 + ((short)(array[1] - ''));
    if (i < 0xB0A1) return "*";
    if (i < 0xB0C5) return "A";
    if (i < 0xB2C1) return "B";
    if (i < 0xB4EE) return "C";
    if (i < 0xB6EA) return "D";
    if (i < 0xB7A2) return "E";
    if (i < 0xB8C1) return "F";
    if (i < 0xB9FE) return "G";
    if (i < 0xBBF7) return "H";
    if (i < 0xBFA6) return "J";
    if (i < 0xC0AC) return "K";
    if (i < 0xC2E8) return "L";
    if (i < 0xC4C3) return "M";
    if (i < 0xC5B6) return "N";
    if (i < 0xC5BE) return "O";
    if (i < 0xC6DA) return "P";
    if (i < 0xC8BB) return "Q";
    if (i < 0xC8F6) return "R";
    if (i < 0xCBFA) return "S";
    if (i < 0xCDDA) return "T";
    if (i < 0xCEF4) return "W";
    if (i < 0xD1B9) return "X";
    if (i < 0xD4D1) return "Y";
    if (i < 0xD7FA) return "Z";
    return "*";
    }

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  • 原文地址:https://www.cnblogs.com/toloe/p/6889380.html
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