这座城市是中国唯一一座三千年没改过名字的城市,历史悠久,曾为一国之都,战国七雄争霸的峥嵘岁月是它最为活跃辉煌的时代,这就是——邯郸。
When updating the managedObjectContext is it ok practice to do the save setup in view controllers that may be released or should the appDelegate handle the saving of the managedObjectContext so that e