修改动画自动脚本的小bug

ActionTowerDefense/Assets/Editor/SkeletonDataReader.cs

@@ -154,11 +154,10 @@ public class SkeletonDataMonitor
 
     private static void WriteData(string path)
     {
+        GameObject prefab = AssetDatabase.LoadAssetAtPath<GameObject>(path);
+        GameObject prefabInstance = PrefabUtility.InstantiatePrefab(prefab) as GameObject;
         try
         {
-            GameObject prefab = AssetDatabase.LoadAssetAtPath<GameObject>(path);
-            GameObject prefabInstance = PrefabUtility.InstantiatePrefab(prefab) as GameObject;
-
             cha = prefabInstance.GetComponent<Character>();
             ReadData(prefabInstance);
             PrefabUtility.SaveAsPrefabAsset(prefabInstance, path);
@@ -168,6 +167,10 @@ public class SkeletonDataMonitor
         {
             Debug.LogError($"´¦ÀíPrefabʱ³ö´í({path}): {ex.Message}");
         }
+        finally
+        {
+            UnityEngine.Object.DestroyImmediate(prefabInstance);
+        }
     }
 
     static void ReadData(GameObject prefab)