ModuleIntializer in CSharp | 楼窗晚风

Refer to Module Initializer documentation, the ModuleInitializer is a useful attribute, which enable your program run something as it initialized.

Usage of this attribute is very simple, just have a class, and a parameterless static method that returns void, and simply give it an attribute.

using System.Runtime.CompilerServices;

namespace LanguageLab;

public class ToBeInitialized
{
    [ModuleInitializer]
    public static void SayHello()
    {
        Console.WriteLine("Hello!");
    }
}

And then when you run your application, even if there’s no any code in Main method, but the string Hello! will be still printed.