diff --git a/Assets/GameScripts/Main/GameStart.cs b/Assets/GameScripts/Main/GameStart.cs
index 1ad28fe..3da259e 100644
--- a/Assets/GameScripts/Main/GameStart.cs
+++ b/Assets/GameScripts/Main/GameStart.cs
@@ -1,5 +1,11 @@
 using Cysharp.Threading.Tasks;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Net.NetworkInformation;
+using System.Threading;
 using UnityEngine;
+using UnityEngine.Networking;
 using YooAsset;
 
 public class GameStart : MonoBehaviour
@@ -9,15 +15,15 @@ public class GameStart : MonoBehaviour
     {
         Debug.Log("GameStart");
         GamePreload.Inst.Test("call by GameStart");
-        await LoadSimpleR3Test();
+        _=FrameSplittingTest(1);
+        await UIManager.Inst.ShowUIAsync<SimpleR3Test>("test1", MainUICanvas.Inst.Medium);
     }
-    async UniTask LoadSimpleR3Test()
+    async UniTask FrameSplittingTest(int delayFrame)
     {
-        UIManager.Inst.ShowUI<SimpleR3Test>("test1", MainUICanvas.Inst.Medium);
-        await UIManager.Inst.ShowUIAsync<SimpleR3Test>("test2", MainUICanvas.Inst.Medium);
-        await UIManager.Inst.ShowUIAsync<SimpleR3Test>("test2");
-        await UIManager.Inst.ShowUIAsync<SimpleR3Test>("test3");
-        await UIManager.Inst.TestShowUIAsync("FullTest", "test4", MainUICanvas.Inst.Medium,true);
-        UIManager.Inst.TestShowUI("FullTest","test5", MainUICanvas.Inst.Medium);
+        for (int i = 0; i < 100; i++)
+        {
+            Debug.Log(i);
+            await UniTask.DelayFrame(delayFrame);
+        }
     }
-}
+}
\ No newline at end of file
diff --git a/Assets/GameScripts/Main/UI/SimpleR3Test.cs b/Assets/GameScripts/Main/UI/SimpleR3Test.cs
index eebe8d2..1677508 100644
--- a/Assets/GameScripts/Main/UI/SimpleR3Test.cs
+++ b/Assets/GameScripts/Main/UI/SimpleR3Test.cs
@@ -11,7 +11,6 @@ public class SimpleR3Test : UIBase
 
     public override void OnCreate()
     {
-        base.OnCreate();
         value.BindToScrollbar(scrollbar).AddTo(this);
         value.BindToInputField(inputField).AddTo(this);
     }
diff --git a/Assets/GameScripts/Main/UI/UIBase.cs b/Assets/GameScripts/Main/UI/UIBase.cs
index a54f2e7..895d6a2 100644
--- a/Assets/GameScripts/Main/UI/UIBase.cs
+++ b/Assets/GameScripts/Main/UI/UIBase.cs
@@ -2,12 +2,18 @@ using UnityEngine;
 
 public class UIBase : MonoBehaviour
 {
-    public RectTransform rectTransform;
-    public UIBase parent;
-    public virtual void OnCreate() 
+    public RectTransform rectTransform
     {
-        rectTransform = GetComponent<RectTransform>();
+        get
+        {
+            if (_rectTransform == null) 
+                _rectTransform = GetComponent<RectTransform>();
+            return _rectTransform;
+        }
     }
+    RectTransform _rectTransform;
+    public UIBase parent;
+    public virtual void OnCreate() { }
     public virtual void OnShow() { }
     public virtual void OnHide() { }
 
diff --git a/Assets/GameScripts/Main/UI/UIManager.cs b/Assets/GameScripts/Main/UI/UIManager.cs
index c8024b4..24ba8c8 100644
--- a/Assets/GameScripts/Main/UI/UIManager.cs
+++ b/Assets/GameScripts/Main/UI/UIManager.cs
@@ -6,7 +6,8 @@ using YooAsset;
 
 public class UIManager : Singleton<UIManager>
 {
-    public Dictionary<string, UIBase> openedUIs = new Dictionary<string, UIBase>();
+    Dictionary<string, UIBase> openedUIs = new Dictionary<string, UIBase>();
+    Dictionary<string, AssetHandle> assetHandles = new Dictionary<string, AssetHandle>();
     Stack<UIBase> uiStack = new Stack<UIBase>();
 
     public T ShowUI<T>(string uiName, RectTransform parent = null, bool isFull = false) where T : UIBase
@@ -59,18 +60,36 @@ public class UIManager : Singleton<UIManager>
     }
     GameObject LoadUI(string uiType)
     {
-        AssetHandle uiHandle = YooAssets.LoadAssetSync<GameObject>(uiType);
-        return (GameObject)uiHandle.AssetObject;
+        if (!assetHandles.ContainsKey(uiType))
+        {
+            AssetHandle uiHandle = YooAssets.LoadAssetSync<GameObject>(uiType);
+            assetHandles.Add(uiType, uiHandle);
+            return (GameObject)uiHandle.AssetObject;
+        }
+        else
+        {
+            AssetHandle uiHandle = assetHandles[uiType];
+            return (GameObject)uiHandle.AssetObject;
+        }
     }
     async UniTask<GameObject> LoadUIAsync(string uiType)
     {
-        AssetHandle uiHandle = YooAssets.LoadAssetAsync<GameObject>(uiType);
-        await uiHandle.ToUniTask();
-        return (GameObject)uiHandle.AssetObject;
+        if (!assetHandles.ContainsKey(uiType))
+        {
+            AssetHandle uiHandle = YooAssets.LoadAssetAsync<GameObject>(uiType);
+            await uiHandle.ToUniTask();
+            assetHandles.Add(uiType, uiHandle);
+            return (GameObject)uiHandle.AssetObject;
+        }
+        else
+        {
+            AssetHandle uiHandle = assetHandles[uiType];
+            return (GameObject)uiHandle.AssetObject;
+        }
     }
 
     #region 用于测试没挂载UIBase的
-    public Dictionary<string, GameObject> testOpenedUIs = new Dictionary<string, GameObject>();
+    Dictionary<string, GameObject> testOpenedUIs = new Dictionary<string, GameObject>();
     Stack<GameObject> testUIStack = new Stack<GameObject>();
     public GameObject TestShowUI(string path, string uiName, RectTransform parent = null, bool isFull = false)
     {
diff --git a/Assets/GameScripts/Main/UI/UnityUIBindings.cs b/Assets/GameScripts/Main/UI/UnityUIBindings.cs
index 80580ab..9c80762 100644
--- a/Assets/GameScripts/Main/UI/UnityUIBindings.cs
+++ b/Assets/GameScripts/Main/UI/UnityUIBindings.cs
@@ -12,7 +12,7 @@ namespace R3
         {
             return source.Subscribe(scrollbar, static (x, s) => s.value = x);
         }
-        public static IDisposable SubscribeToText(this ReactiveProperty<float> source, InputField inputField)
+        public static IDisposable SubscribeToInputField(this ReactiveProperty<float> source, InputField inputField)
         {
             return source.Subscribe(inputField, static (x, t) => t.text = x.ToString());
         }
@@ -33,7 +33,7 @@ namespace R3
             var disposable = new CompositeDisposable();
 
             // 值 → InputField
-            source.SubscribeToText(inputField).AddTo(disposable);
+            source.SubscribeToInputField(inputField).AddTo(disposable);
 
             // InputField → 值
             inputField.OnValueChangedAsObservable().Subscribe(_value =>