CSharp16进制、字符串、字节数组之间转换

字符串转16进制字节数组 / / 字符串转16进制字节数组/ / / private static byte strToToHexByte(string hexString) hexString = hexString.Replace( , );if (hexString.Length % 2) != 0) hexString += ;byte returnBytes = new bytehexString.Length / 2;for (int i = 0; i returnBytes.Length; i+) returnBytesi = Convert.ToByte(hexString.Substring(i * 2, 2), 16);return returnBytes; 字节数组转16进制字符串/ / 字节数组转16进制字符串/ / / public static string byteToHexStr(byte bytes)string returnStr = ;if (bytes != null)for (int i = 0; i bytes.Length; i+) returnStr += bytesi.ToString(X2); return returnStr; 从汉字转换到16进制/ / 从汉字转换到16进制/ / / 编码,如utf-8,gb2312/ 是否每字符用逗号分隔/ 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, bytesi);if (fenge & (i != bytes.Length - 1) str += string.Format(0, ,); return str.ToLower(); 16进制转换成汉字/ 从16进制转换成汉字/ / / 编码,如utf-8,gb2312/ public static string UnHex(string hex, string charset)if (hex = null)throw new ArgumentNullException(hex); hex = hex.Replace(, ); hex = hex.Replace(n, ); hex = hex.Replace(, ); hex = hex.Replace( , );if (hex.Length % 2 != 0) hex += 20;/空格 / 需要将 hex 转换成 byte 数组。 byte bytes = new bytehex.Length / 2;for (int i = 0; i bytes.Length; i+)try/ 每两个字符是一个 byte。 bytesi = 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.