C # 16 between hexadecimal strings, and converts an array of bytes

1. Will c # how the string is converted into a decimal number hexadecimal number string

// binary decimal turn 
Console.WriteLine ( "166 decimal binary representation:" + Convert.ToString (166, 2)); 
// octal, decimal turn 
Console.WriteLine ( "decimal representation of the octal 166:" + Convert.ToString ( 166, 8)); 
// turn decimal hex Console.WriteLine ( "decimal hex 166 indicates:" + Convert.ToString (166, 16));   
// binary decimal 
Console.WriteLine ( " 111101 binary decimal representation: "+ Convert.ToInt32 (" 111101 ", 2)); 
// turn octal decimal 
Console.WriteLine (" decimal 44 octal representation: "+ Convert.ToInt32 (" 44 " , 8)); 
// turn hex decimal 
Console.WriteLine ( "CC hex decimal representation:" + Convert.ToInt32 ( "CC" , 16));

 

2. In the serial communication process, often use a string to a hexadecimal byte array and convert

string StringToHexString Private (string S, Encoding encode) 
{ 
    byte [] B = encode.GetBytes (S); // string encoding program according to the specified byte array 
    string Result = string.Empty; 
    for (int I = 0; I < b.Length; i ++) // changed for each byte hexadecimal characters, separated in% 
    { 
        Result + = "%" + Convert.ToString (B [I], 16); 
    } 
    return Result; 
} 

Private String HexStringToString (HS string, Encoding encode) 
{ 
    // string divided at%, and remove empty characters 
    string [] = hs.Split chars (new new char [] { '%'}, StringSplitOptions.RemoveEmptyEntries); 
    byte [] = new new B byte [chars.Length]; 
    // changed character by character hexadecimal data bytes 
    for (int I = 0; I <chars.Length; I ++) 
    {
        B [I] = Convert.ToByte (chars [I], 16);
    } 
    // the specified byte array becomes string encoding 
    return encode.GetString (B); 
}

 

Hexadecimal byte array transfer string

/// <summary>
/// 字符串转16进制字节数组
/// </summary>
/// <param name="hexString"></param>
/// <returns></returns>
private static byte[] strToToHexByte(string hexString)
{
    hexString = hexString.Replace(" ", "");
    if ((hexString.Length % 2) != 0)
        hexString += " ";
    byte[] returnBytes = new byte[hexString.Length / 2];
    for (int i = 0; i < returnBytes.Length; i++)
        returnBytes[i] = Convert.ToByte(hexString.Substring(i * 2, 2), 16);
    return returnBytes;
}

 

Byte array to a hexadecimal string 16

/// <summary>
/// 字节数组转16进制字符串
/// </summary>
/// <param name="bytes"></param>
/// <returns></returns>
public static string byteToHexStr(byte[] bytes)
{
    string returnStr = "";
    if (bytes != null)
    {
        for (int i = 0; i < bytes.Length; i++)
        {
            returnStr += bytes[i].ToString("X2");
        }
    }
    return returnStr;
}

 

Conversion from Chinese characters to hexadecimal

/// <Summary> 
/// characters converted from hex to 16 
/// </ Summary> 
/// <param name = "S"> </ param> 
/// <param name = "charset"> coding as "UTF-. 8", "GB2312" </ param> 
/// <param name = "fenge"> Is each separated by a comma character </ param> 
/// <Returns> </ Returns> 
public static String ToHex (S String, String charset, BOOL fenge) 
{ 
    IF ((s.Length% 2) = 0!) 
    { 
        S + = ""; // space 
                    // throw new ArgumentException ( "s is not valid chinese string"!) ; 
    } 
    System.Text.Encoding CHS = System.Text.Encoding.GetEncoding (charset); 
    byte [] bytes = chs.GetBytes (S);
    string str = "";
    for (int i = 0; i < bytes.Length; i++)
    {
        str += string.Format("{0:X}", bytes[i]);
        if (fenge && (i != bytes.Length - 1))
        {
            str += string.Format("{0}", ",");
        }
    }
    return str.ToLower();
}

 

Hex converted into Chinese characters

    for (int i = 0; i < bytes.Length; i++)
    {
        try
        {
            // 每两个字符是一个 byte。 
            bytes[i] = byte.Parse(hex.Substring(i * 2, 2),
            System.Globalization.NumberStyles.HexNumber);
        }
        catch
        {
            // Rethrow an exception with custom message. 
            throw new ArgumentException("hex is not a valid hex number!", "hex");
        }
    }
    System.Text.Encoding chs = System.Text.Encoding.GetEncoding(charset);
    return chs.GetString(bytes);
}