解决累计爬升不准问题&本地文件记录样式

Assets/Scripts/Apis/Models/JoinedCompetitionModel.cs

@@ -13,7 +13,7 @@ namespace Assets.Scripts.Apis.Models
         public string Dec { get; set; }
         public int CreateUser { get; set; }
         public DateTime CreateTime { get; set; }
-        public bool IsOfficial { get; set; }
+        public bool? IsOfficial { get; set; }
         public DateTime StartTime { get; set; }
         public DateTime EndTime { get; set; }
         public string CoverImage { get; set; }