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After opening the outer package, eh, it looks like an egg package!泥鳅忙道：不用叫姚婶子，我送去也快得很，一会就转来了。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.　　女儿的睡前故事　　在见到东方的头目本吉之后，莫斯发现东方所存在的意义其实并不是“除暴安良”或者是“劫富济贫”那么简单－－莫斯的生活、个人道德标准和她对世界的认知发生了变化和倾斜……In fact, each design pattern is a very important idea, which looks very familiar. In fact, it is because what we have learned is involved. Although sometimes we don't know it, it is actually reflected everywhere in Java's own design, such as AWT, JDBC, collection class, IO pipeline or Web framework, in which design patterns are everywhere. Because of our limited space, it is difficult to talk about every design pattern in great detail, but I will try my best to write down the meaning clearly in the limited space and space so as to make everyone understand better. If there is no accident in this chapter, it should be the last talk of the design pattern. First of all, it should be the figure at the beginning of the previous article:就算是写武侠出身的天启去写也不例外。