* ObjectTest.cs:

* LCObjectData.cs:

* LCObject.cs: chore: 支持 LCObject 序列化

Storage/Storage.Test/ObjectTest.cs

@@ -180,5 +180,39 @@ namespace Storage.Test {
                 Assert.NotNull(obj["intList"]);
             }
         }
+
+        [Test]
+        public async Task Serialization() {
+            LCObject obj = new LCObject("Hello");
+            obj["intValue"] = 123;
+            obj["boolValue"] = true;
+            obj["stringValue"] = "hello, world";
+            obj["time"] = DateTime.Now;
+            obj["intList"] = new List<int> { 1, 1, 2, 3, 5, 8 };
+            obj["stringMap"] = new Dictionary<string, object> {
+                { "k1", 111 },
+                { "k2", true },
+                { "k3", "haha" }
+            };
+            LCObject nestedObj = new LCObject("World");
+            nestedObj["content"] = "7788";
+            obj["objectValue"] = nestedObj;
+            obj["pointerList"] = new List<object> {
+                new LCObject("World"),
+                nestedObj
+            };
+            await obj.Save();
+
+            string json = obj.ToString();
+            WriteLine(json);
+            LCObject newObj = LCObject.ParseObject(json);
+            Assert.NotNull(newObj.ObjectId);
+            Assert.NotNull(newObj.ClassName);
+            Assert.NotNull(newObj.CreatedAt);
+            Assert.NotNull(newObj.UpdatedAt);
+            Assert.AreEqual(newObj["intValue"], 123);
+            Assert.AreEqual(newObj["boolValue"], true);
+            Assert.AreEqual(newObj["stringValue"], "hello, world");
+        }
     }
 }

Storage/Storage/Internal/Object/LCObjectData.cs

@@ -55,11 +55,17 @@ namespace LeanCloud.Storage.Internal.Object {
                 return null;
             }
             Dictionary<string, object> dict = new Dictionary<string, object> {
-                { "className", objectData.ClassName },
+                { "className", objectData.ClassName }
-                { "objectId", objectData.ObjectId },
-                { "createdAt", objectData.CreatedAt },
-                { "updatedAt", objectData.UpdatedAt },
             };
+            if (!string.IsNullOrEmpty(objectData.ObjectId)) {
+                dict["objectId"] = objectData.ObjectId;
+            }
+            if (objectData.CreatedAt != null) {
+                dict["createdAt"] = objectData.CreatedAt;
+            }
+            if (objectData.UpdatedAt != null) {
+                dict["updatedAt"] = objectData.UpdatedAt;
+            }
             if (objectData.CustomPropertyDict != null) {
                 foreach (KeyValuePair<string, object> kv in objectData.CustomPropertyDict) {
                     string key = kv.Key;

Storage/Storage/LCObject.cs

@@ -3,7 +3,7 @@ using System.Collections;
 using System.Collections.Generic;
 using System.Linq;
 using System.Threading.Tasks;
-using System.Collections.ObjectModel;
+using Newtonsoft.Json;
 using LeanCloud.Storage.Internal.Object;
 using LeanCloud.Storage.Internal.Operation;
 using LeanCloud.Storage.Internal.Codec;
@@ -457,6 +457,26 @@ namespace LeanCloud.Storage {
             subclassTypeDict[classType] = subclassInfo;
         }
 
+        /// <summary>
+        /// 序列化为 json 字符串
+        /// </summary>
+        /// <returns></returns>
+        public override string ToString() {
+            return JsonConvert.SerializeObject(LCObjectData.Encode(data));
+        }
+
+        /// <summary>
+        /// 反序列化为 LCObject 对象
+        /// </summary>
+        /// <param name="json"></param>
+        /// <returns></returns>
+        public static LCObject ParseObject(string json) {
+            LCObjectData objectData = LCObjectData.Decode(JsonConvert.DeserializeObject<Dictionary<string, object>>(json));
+            LCObject obj = Create(objectData.ClassName);
+            obj.Merge(objectData);
+            return obj;
+        } 
+
         void ApplyOperation(string key, ILCOperation op) {
             if (op is LCDeleteOperation) {
                 estimatedData.Remove(key);