C＃中的递归序列化

Question

我需要序列化为myFamily.xml文件，我真的不知道该怎么做。

枚举

public enum Genre {
    Male,
    Female
}

PERSON.cs

public class PERSON {
    public string Name { get; set; }
    public Genre Genre { get; set; }
    public List<PERSON> Parents { get; set; }
    public List<PERSON> Children { get; set; }

    public PERSON(string name, Genre genre) {
        this.Name = name;
        this.Genre = genre;
    }
}

Form1.cs

    private void Form1_Load(object sender, EventArgs e) {
        List<PERSON> myFamily = new List<PERSON>();

        PERSON Andrew = new PERSON("Andrew", Genre.Male);
        PERSON Angela = new PERSON("Angela", Genre.Female);
        PERSON Tina = new PERSON("Tina", Genre.Female);
        PERSON Jason = new PERSON("Jason", Genre.Male);
        PERSON Amanda = new PERSON("Amanda", Genre.Female);
        PERSON Steven = new PERSON("Steven", Genre.Male);

        Andrew.Parents.Add(Tina);
        Andrew.Parents.Add(Jason);

        Angela.Parents.Add(Tina);
        Angela.Parents.Add(Jason);

        Tina.Parents.Add(Amanda);
        Tina.Parents.Add(Steven);

        Jason.Children.Add(Andrew);
        Jason.Children.Add(Angela);

        Tina.Children.Add(Andrew);
        Tina.Children.Add(Angela);

        Amanda.Children.Add(Tina);

        Steven.Children.Add(Tina);

        myFamily.Add(Andrew);
        myFamily.Add(Angela);
        myFamily.Add(Tina);
        myFamily.Add(Jason);
        myFamily.Add(Amanda);
        myFamily.Add(Steven);

        // serialize to an .xml file
    }