C [byte array] and [hexadecimal string] mutual conversion - codeplus series

C# [ Byte array ] And [16 Base string ] Interconversion

Preface

Hexadecimal （ Shorthand for hex Subscript or subscript 16） Is a base number of 16 Our counting system , It's a kind of meeting 16 Into the 1 Carry system . Usually numbers 0、1、2、3、4、5、6、7、8、9 And letters A、B、C、D、E、F（a、b、c、d、e、f） Express , among :A_{F Express 10}15, These are called hexadecimal numbers .

We are in the process of development , It is often necessary to print out the received and sent data for inspection . How to simply and efficiently convert a byte array to a string in one line of code ？ Let's have a look ！

---

Sample code

[ Byte array ] turn [16 Base string ]

byte[] bytes = new byte[] {
     0xAA, 0xBB, 0xCC, 0x01, 0x02, 0x03 };

Console.WriteLine($" Hexadecimal string （ Default ）：\n{
      bytes.ToHexString()}");
Console.WriteLine($" Hexadecimal string ( Uppercase with space )：\n{
      bytes.ToHexString("{0:X2} ")}");
Console.WriteLine($" Hexadecimal string ( Lowercase with spaces )：\n{
      bytes.ToHexString("{0:x2} ")}");
Console.WriteLine($" Hexadecimal code string ：\n{
      bytes.ToHexCodeString()}");

The results are shown in the following figure ：

[16 Base string ] turn [ Byte array ]

string hex = "AABBCC010203";
var bytes = hex.HexStringToBytes();

---

introduce CodePlus

The main reason why the transformation is so simple is that it refers to CodePlus Extension method provided .
Right click the item , choice management NuGet Package

Enter... In the search field CodePlus, After selecting the package in the figure , Select Install .