小编KBa*_*Bar的帖子

using System.Reflection;

public class Program
{
    public static event EventHandler<bool> MyEvent;

    public static void Main()
    {
        EventInfo eventInfo = typeof(Program).GetEvent(nameof(MyEvent));
        AddEventHandler(eventInfo, null, (s, e) => {
            if (e == null) return; // either if condition or null conditional operator
            Console.WriteLine(e?.ToString());
        });
        MyEvent(null, true);
    }

    public static void AddEventHandler(EventInfo eventInfo, object client, EventHandler handler)
    {
        object eventInfoHandler = eventInfo.EventHandlerType
            .GetConstructor(new[] { typeof(object), typeof(IntPtr) })
            .Invoke(new[] { handler.Target, handler.Method.MethodHandle.GetFunctionPointer() });

        eventInfo.AddEventHandler(client, (Delegate)eventInfoHandler);
    }
}

有什么解释吗？