您能解释为什么“ILevel2”的序列化不包括“ILevel1”属性吗？
Serialize(level2)，我希望有{"Scrore":10,"Name":"Benjamin","City":"Lille"}
如何拥有它？注意我使用.net JSON序列化器：using System.Text.Json.JsonSerializer;

var obj = new FullClass() { Name = "Benjamin", Scrore = 10, City = "Lille"};

ILevel1 level1 = obj as ILevel1;
ILevel2 level2 = obj as ILevel2;

Console.WriteLine(Serialize(obj)); //==>  {"Scrore":10,"Name":"Benjamin","City":"Lille"}
Console.WriteLine(Serialize(level1)); //==> {"Name":"Benjamin","City":"Lille"}
Console.WriteLine(Serialize(level2)); //==> {"Scrore":10}

public interface ILevel1
{
    string Name { get; set; }
    string City { get; set; }
}

public interface ILevel2 : ILevel1
{
    int Scrore { get; set; }
}

public class FullClass : ILevel2
{
    public int Scrore { get; set; }

    public string Name { get; set; }

    public string City { get; set; }
}