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1. There are two options to manage the creation and destruction of state objects. The first is to create and then destroy state objects only when they are needed, and the other is to create all state objects from the beginning and never destroy them. If the state object is relatively large, the first method can be used to save memory, which can avoid creating some objects that will not be used and recycle them in time. However, if the state changes frequently, it is best to create all these state objects in the first place, and there is no need to destroy them, because they may be used again soon.胡宗宪依明制设苔湾府，治下澎湖、嘉义两县，澎湖一卫，嘉义一所，几乎就是明廷在苔湾的翻版。郑氏微笑道：去吧。　　在1964至1974这社会动荡的10年里，阿里表现出的坚忍不拔的毅力和决不屈服的独立性不仅对他个人，对拳击界甚至对整个社会都产生了巨大的回响，阿里亦因此成为黑人运动和反越战运动的精神领袖。沈梦海喝了一口咖啡，说道。Defines an interface for creating objects, allowing subclasses to decide which class to instantiate. Factory methods delay the instantiation of a class to its subclasses.故事以祸国殃民的「黑米」鸦片为题材，自鸦片传入中国以来，不知多少人因毒瘾而丧失心智；不知多少家庭为吸食鸦片而倾尽家财? 家散人亡；不知多少百姓毒癖深种而变得颓靡不堪！故有歌云：「大烟是杆枪，不打自受伤。几多英雄汉，困死在烟床！」