添加可空字段

Elight.Logic/Model/App_LawyerServicesInput.cs

@@ -81,6 +81,6 @@ namespace Elight.Logic
         /// 0:待办理，1：同意 ，2：拒绝
         /// </summary>
         [DataMember]
-        public int state { get; set; }
+        public int? state { get; set; }
     }
 }