进制转换

 //字节数组转16进制字符串
        public static string ByteToHexString(byte[] bytes)
        {
            return BitConverter.ToString(bytes).Replace("-", "");
        }

        //16进制字符串转字节数组
        public static byte[] HexStringToByte(string hexStr)
        {
            hexStr = hexStr.Replace(" ", "");
            if ((hexStr.Length % 2) != 0)
                hexStr += " ";
            byte[] returnBytes = new byte[hexStr.Length / 2];
            for (int i = 0; i < returnBytes.Length; i++)
                returnBytes[i] = Convert.ToByte(hexStr.Substring(i * 2, 2), 16);
            return returnBytes;
        }

        /// <summary>
        /// 字符串转16进制字符串
        /// </summary>
        /// <param name="s"></param>
        /// <param name="encode"></param>
        /// <returns></returns>
        public static string StringToHexString(string str)
        {
            byte[] bytes = Encoding.ASCII.GetBytes(str);
            return ByteToHexString(bytes);
        }

        /// <summary>
        /// 将16进制字符串转为字符串
        /// </summary>
        /// <param name="hs"></param>
        /// <param name="encode"></param>
        /// <returns></returns>
        public static string HexStringToString(string HexStr)
        {
            var bytes=HexStringToByte(HexStr);
            return Encoding.ASCII.GetString(bytes);
        }