public override void RemoveGraph(InternalTimelineGraphAsset graph)
 {
     DestroyImmediate(graph, true);
     EditorUtility.SetDirty(this);
     AssetDatabase.SaveAssets();
     AssetDatabase.Refresh();
 }
 /// <summary>
 /// 移除视图
 /// </summary>
 /// <param name="name"></param>
 public abstract void RemoveGraph(InternalTimelineGraphAsset graph);