How to connect your dll library in C# when working from the console?

Question

C++ / C#

C#. I work through the console (compilation). Visual Studio is not installed.
I compiled my class library into a dll file.
Then I created a main program file with a Main method. Dll file and program file are in the same folder. I wrote "using MyDll" in the main program. However, the program does not see my library.
Tell me, with what command in the console can I connect the dll file to my project?
Thank you!

Answer 1

shared1.cs

public class MyShared {
    public static string getHello() => "Hello, World";
}

prog.cs

class MyProgram {
  static void Main(string[] args) => System.Console.WriteLine(MyShared.getHello());
}

csc /t:library shared1.cs
csc /t:exe /r:shared1.dll prog.cs

Answer 2

Install studio or teach https://metanit.com/sharp/tutorial/1.3.php