C#byte[]转换hex(16进制字符串)

OStack程序员社区-中国程序员成长平台 › 门户 › 编程› Node.js›Node.js教程

原作者: [db:作者] 来自: [db:来源] 收藏邀请

1.byte[] 转换hex(16进制字符串)

1.1 BitConverter方式

            var str = DateTime.Now.ToString();
            var encode = Encoding.UTF8;
            var bytes = encode.GetBytes(str);
            var hex = BitConverter.ToString(bytes, 0).Replace("-", string.Empty).ToLower();
            Console.WriteLine(hex);

1.2 StringBuilder方式

           var str = DateTime.Now.ToString();
            var encode = Encoding.UTF8;
            var bytes = encode.GetBytes(str);
            StringBuilder ret = new StringBuilder();
            foreach (byte b in bytes)
            {
                //{0:X2} 大写
                ret.AppendFormat("{0:x2}", b);
            }
            var hex = ret.ToString();
            Console.WriteLine(hex);

2.hex(16进制字符串)转换 byte[]

          var inputByteArray = new byte[hex.Length / 2];
            for (var x = 0; x < inputByteArray.Length; x++)
            {
                var i = Convert.ToInt32(hex.Substring(x * 2, 2), 16);
                inputByteArray[x] = (byte)i;
            }
            str = encode.GetString(inputByteArray);
            Console.WriteLine(str);

转自： jamesbing http://gaobing.cnblogs.com