public static void DestroyBuf(BattleUnitModel model) { List <BattleUnitBuf> activatedBufList = model.bufListDetail.GetActivatedBufList(); Buf_DeltaStream buf = activatedBufList.Find((BattleUnitBuf x) => x is Buf_DeltaStream) as Buf_DeltaStream; bool flag = buf == null; if (!flag) { buf.Destroy(); } }