diff --git a/Assets/Scripts/Framework/DDT.cs b/Assets/Scripts/Framework/DDT.cs
index 90223c4..3bb4f50 100644
--- a/Assets/Scripts/Framework/DDT.cs
+++ b/Assets/Scripts/Framework/DDT.cs
@@ -2,7 +2,6 @@ using Convention;
 using Demo.Game.Attr;
 using System;
 using System.Collections;
-using System.Collections.Generic;
 using System.IO;
 using Unity.Collections;
 using UnityEngine;
@@ -20,11 +19,15 @@ namespace Demo.Game
             public override void Deserialize(BinaryReader reader)
             {
                 BinarySerializeUtility.DeserializeNativeArray(reader, ref Datas);
+                Count = Datas.Length;
                 base.Deserialize(reader);
             }
 
             public override void Serialize(BinaryWriter writer)
             {
+                var newArray = new NativeArray<float>(Count, Allocator.Persistent, NativeArrayOptions.UninitializedMemory);
+                NativeArray<float>.Copy(Datas, newArray, Count);
+                Datas = newArray;
                 BinarySerializeUtility.SerializeNativeArray(writer, Datas);
                 base.Serialize(writer);
             }