C# 16进制字符串和Byte数组互转帮助类

C# 16进制字符串和Byte数组互转帮助类

最近开发上位机程序主要负责和下位机通信，为了方便拿测试指令数据测试，需要将厂家给的demo数据直接拿程序进行测试，做下记录后期复用。

    /// <summary>
    /// 16进制和数组互转帮助类
    /// </summary>
    class ByteHelper
    {
        /// <summary>

        /// byte数组转16进制字符串

        /// </summary>

        /// <param name="data">byte数组</param>

        /// <returns></returns>

        public static string ByteArrayToHexString(byte[] data)

        {

            StringBuilder sb = new StringBuilder(data.Length * 3);

            foreach (byte b in data)
            {
                sb.Append(Convert.ToString(b, 16).PadLeft(2, '0'));
            }

            return sb.ToString().ToUpper();

        }



        /// <summary>

        /// 16进制字符串转byte数组

        /// </summary>

        /// <param name="hexString">16进制字符</param>

        /// <returns></returns>

        public static byte[] ByteArrayToHexString(string hexString,string spiltChar=" ")
        {
            if (!string.IsNullOrEmpty(spiltChar))
            {
                hexString = hexString.Replace(spiltChar,"");
            }

            //将16进制秘钥转成字节数组

            var byteArray = new byte[hexString.Length / 2];

            for (var x = 0; x < byteArray.Length; x++)

            {
                var i = Convert.ToInt32(hexString.Substring(x * 2, 2), 16);

                byteArray[x] = (byte)i;

            }

            return byteArray;

        }
    }