라이브러리 프로젝트 추가

BrokerDogLib/BrokerDogLib.cs

@@ -0,0 +1,14 @@
+namespace BrokerDogLib;
+
+public static class BrokerDogLib
+{
+    public static string SayHello()
+    {
+        return "Hello";
+    }
+
+    public static string SayWorld()
+    {
+        return "World";
+    }
+}

BrokerDogLib/BrokerDogLib.csproj

@@ -0,0 +1,9 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net9.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>