如果class使用了DataContract，name没有使用DataMember的property就不解析

[DataContract]public class File{    // excluded from serialization    // does not have DataMemberAttribute    public Guid Id { get; set; }    [DataMember]    public string Name { get; set; }    [DataMember]    public int Size { get; set; }}File file = new File{    Id = Guid.NewGuid(),    Name = "ImportantLegalDocuments.docx",    Size = 50 * 1024};string json = JsonConvert.SerializeObject(file, Formatting.Indented);Console.WriteLine(json);// {//   "Name": "ImportantLegalDocuments.docx",//   "Size": 51200// }