望风崖

///
/// 数字转字母
///
/// 要转换成字母的数字（数字范围在闭区间[65,90]）
///
private string NunToChar(int number)
{
         if (65 <= number && 90 >= number)
         {
                System.Text.ASCIIEncoding asciiEncoding = new System.Text.ASCIIEncoding();
                byte[] btNumber = new byte[] { (byte)number };
                return asciiEncoding.GetString(btNumber);
        }
        return "数字不在转换范围内";
}

///
/// 把1,2,3,...,35,36转换成A,B,C,...,Y,Z
///
/// 要转换成字母的数字（数字范围在闭区间[1,36]）
///
private string NunberToChar(int number)
{
        if (1 <= number && 36 >= number)
        {
                int num = number 64;
                System.Text.ASCIIEncoding asciiEncoding = new System.Text.ASCIIEncoding();
                byte[] btNumber = new byte[] { (byte)num };
                return asciiEncoding.GetString(btNumber);
        }
        return "数字不在转换范围内";
}