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;
 
        }
    }