16進位制與字串、位元組陣列之間的轉換

在串列埠通訊過程中，經常要用到 16進位制與字串、位元組陣列之間的轉換

/// <summary>

/// 字串轉16進位制位元組陣列

/// </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;

}

位元組陣列轉16進位制字串

/// <summary>

/// 位元組陣列轉16進位制字串

/// </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;

}

從漢字轉換到16進位制

/// <summary>

/// 從漢字轉換到16進位制

/// </summary>

/// <param name="s"></param>

/// <param name="charset">編碼,如"utf-8","gb2312"</param>

/// <param name="fenge">是否每字元用逗號分隔</param>

/// <returns></returns>

public static string ToHex(string s, string charset, bool fenge)

{

if ((s.Length % 2) != 0)

{

s += " ";//空格

//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.