字节数组（byte[]）与16进制字符串转换

 /// <summary>
    /// 转换扩展类
    /// </summary>
    public static class ConvertExtend
    {
        /// <summary>
        /// 将byte[]转换为16进制字符串
        /// </summary>
        /// <param name="bytes"></param>
        /// <returns></returns>
        public static string ToString16(this byte[] bytes)
        {
            return bytes.ToList().ToString16();
        }

        /// <summary>
        /// 将List<byte>转换为16进制字符串
        /// </summary>
        /// <param name="bytes"></param>
        /// <returns></returns>
        public static string ToString16(this List<byte> bytes)
        {
            return string.Join(" ", bytes.ConvertAll(b => Convert.ToString(b, 16)));
        }

        /// <summary>
        /// 将16进制字符串转换为byte[]
        /// </summary>
        /// <param name="str16"></param>
        /// <returns></returns>
        public static byte[] ToByte(this string str16)
        {
            return str16.Split(' ').ToList().ConvertAll(s => Convert.ToByte(s, 16)).ToArray();
        }
    }