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Iterator patterns are created for collection objects, For collection objects, It must involve the addition and deletion of collection elements, and certainly supports the operation of traversing collection elements. If the traversal operation is also placed in the collection object at this time, the collection object will bear too many responsibilities. At this time, the responsibilities can be separated and the traversal of the collection can be placed in another object, which is the iterator object.Begin to close the computer!现在小鱼儿既然叫做小鱼儿，那燕南天肯定是死了。游荡巴黎的扒手迈克尔·梅森(麦登饰)一日行窃钱夹成功后，不幸卷入中情局调查的惊天罪案。肖恩·布瑞尔(艾尔巴饰)作为案件负责人果断决定，携手梅森在法国国庆日这一天向恶势力展开反攻。Many Meng Xin are asking, and they also saw many 1-minute Gu Long Li Zhan bosses in the video. They also don't know how to take medicine with the highest efficiency, so they want to summarize it.Enter the above information, mouse click? Button.NO! The longer the code, the more classifiers need to be trained, and the higher the calculation and storage overhead. On the other hand, for a limited number of classes, the number of possible combinations is limited, and when the code length exceeds a certain range, it loses its meaning.