직렬화, 바이트 순서

Socket/ByteOrder/ByteOrder.csproj

@@ -0,0 +1,10 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>

Socket/ByteOrder/Program.cs

@@ -0,0 +1,30 @@
+using System.Net;
+
+namespace ByteOrder;
+
+internal class Program
+{
+	static void Main(string[] args)
+	{
+		/*
+		* 바이트 오더: 바이트를 메모리에 저장하는 순서
+		* 인텔/AMD 계열: 리틀엔디언 - 하위 바이트 먼저 저장
+		* ARM 계열: 빅엔디언 - 상위 바이트 먼저 저장
+		*/
+
+		byte[] buffer = BitConverter.GetBytes(12345678);
+		Console.WriteLine(BitConverter.ToString(buffer));
+
+		// ★★★ 네트워크 레벨에서는 반드시 빅엔디언 쓰기로 약속함
+
+		// 호스트 바이트 순서에서 네트워크 바이트 순서로 변경
+		int num2 = IPAddress.HostToNetworkOrder(12345678);
+		byte[] buffer2 = BitConverter.GetBytes(num2);
+		Console.WriteLine(BitConverter.ToString(buffer2));
+
+		// 네트워크 바이트 순서에서 호스트 바이트 순서로 변경
+		int num3 = BitConverter.ToInt32(buffer2);
+		int num4 = IPAddress.NetworkToHostOrder(num3);
+		Console.WriteLine(num4);
+	}
+}

Socket/Serialize/Program.cs

@@ -0,0 +1,27 @@
+using System.Text;
+
+namespace Serialize;
+
+internal class Program
+{
+	static void Main(string[] args)
+	{
+		//int num = 1234;
+		//byte[] buffer = BitConverter.GetBytes(num);
+		//Console.WriteLine($"int byte length: {buffer.Length}"); // 8bit * 4 = 4byte
+		//int num2 = BitConverter.ToInt32(buffer, 0);
+		//Console.WriteLine($"deserialized: {num2}");
+
+		//long num = 1234;
+		//byte[] buffer = BitConverter.GetBytes(num);
+		//Console.WriteLine($"long byte length: {buffer.Length}"); // 8bit * 8 = 8byte
+		//long num2 = BitConverter.ToInt32(buffer, 0);
+		//Console.WriteLine($"deserialized: {num2}");
+
+		string str = "Hello world";
+		byte[] buffer = Encoding.UTF8.GetBytes(str);
+		Console.WriteLine($"str byte length: {buffer.Length}"); // 8bit * 8 = 8byte
+		string str2 = Encoding.UTF8.GetString(buffer);
+		Console.WriteLine($"deserialized: {str2}");
+	}
+}

Socket/Serialize/Serialize.csproj

@@ -0,0 +1,10 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>

Socket/Socket.sln

@@ -7,6 +7,10 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Server", "Server\Server.csp
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Client", "Client\Client.csproj", "{5EEB261C-98C2-4467-9CC3-2129F0031114}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Serialize", "Serialize\Serialize.csproj", "{E2C0CA13-3138-4CB3-9B41-2C97BA520309}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ByteOrder", "ByteOrder\ByteOrder.csproj", "{34446D97-4EA2-4FEA-8366-B730469A7A87}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -21,6 +25,14 @@ Global
 		{5EEB261C-98C2-4467-9CC3-2129F0031114}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{5EEB261C-98C2-4467-9CC3-2129F0031114}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{5EEB261C-98C2-4467-9CC3-2129F0031114}.Release|Any CPU.Build.0 = Release|Any CPU
+		{E2C0CA13-3138-4CB3-9B41-2C97BA520309}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{E2C0CA13-3138-4CB3-9B41-2C97BA520309}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{E2C0CA13-3138-4CB3-9B41-2C97BA520309}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{E2C0CA13-3138-4CB3-9B41-2C97BA520309}.Release|Any CPU.Build.0 = Release|Any CPU
+		{34446D97-4EA2-4FEA-8366-B730469A7A87}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{34446D97-4EA2-4FEA-8366-B730469A7A87}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{34446D97-4EA2-4FEA-8366-B730469A7A87}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{34446D97-4EA2-4FEA-8366-B730469A7A87}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE