C# 自定义序列化问题

    public class overdue

    {

        public int overdueTimes { get; set; }

        /// <summary>

        /// 90天以上逾期次数

        /// </summary>

        [JsonProperty(PropertyName = "90overdueTimes")]

        public int overdueTimes90 { get; set; }

        /// <summary>

        /// 180天以上逾期次数

        /// </summary>

        [JsonProperty(PropertyName = "180overdueTimes")]

        public int overdueTimes180 { get; set; }

    }