四月的筆記

完整請參考這篇( https://www.cnblogs.com/ZaraNet/p/11550673.html )，這只是試著寫看看而已

        public bool HexTobyte_bool_byte(string input_hex1 ,ref byte value_byte)
        {

            string PATTERN = @"([^A-Fa-f0-9]|\s+?)+";
            char[] Tmp_CharArray1 = input_hex1.ToCharArray();
            string input_hex2 = input_hex1;


            if (Tmp_CharArray1.Length > 2)
            {
                if (((Tmp_CharArray1[0] == '0') && (Tmp_CharArray1[1] == 'x')))
                {

                    input_hex2 = "";

                    for (int i = 2; i < Tmp_CharArray1.Length; i++)
                        input_hex2 = input_hex2 + Tmp_CharArray1[i];
                }
                else if (((Tmp_CharArray1[0] == '0') && (Tmp_CharArray1[1] == 'X')))
                {

                    input_hex2 = "";

                    for (int i = 2; i < Tmp_CharArray1.Length; i++)
                        input_hex2 = input_hex2 + Tmp_CharArray1[i];
                }
            }

            bool ans = (!System.Text.RegularExpressions.Regex.IsMatch(input_hex2, PATTERN));

            if(ans) 
                value_byte = HexTobyte_byte(input_hex2);
            else
                value_byte = 0;

            return ans;

        }