【C#】Newtonsoft.Json 中 JArray 添加数组报错：Could not determine JSON object type for type 'xxx'

List<string> names = new List<string>
{
    "Tom",
    "Jerry"
};

JArray array = new JArray(names);

JObject obj = new JObject()
{
    { "names", array }
};

Console.WriteLine(obj);

{
  "names": [
    "Tom",
    "Jerry"
  ]
}

public class Person
{
    public int ID { get; set; }

    public string Name { get; set; }
}

List<Person> persons = new List<Person>
{
    new Person{ ID = 1, Name = "Tom" },
    new Person{ ID = 2, Name = "Jerry" }
};

JArray array = new JArray(persons);

JObject obj = new JObject()
{
    { "names", array }
};

Console.WriteLine(obj);

JObject obj = new JObject()
{
    { "persons", JArray.FromObject(persons) }
};

{
  "names": [
    {
      "ID": 1,
      "Name": "Tom"
    },
    {
      "ID": 2,
      "Name": "Jerry"
    }
  ]
}