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我不是阳痿。Some people think that:苏樱准备回去看看。4、5分钟后的女人冯宇瞳在和好闺蜜叶紫苏在去天星医学研究所面试时，不仅遇见了坏脾气的研究员况暮臣，紫苏还遇到怪人袭击而受伤住院，冯宇瞳感觉到研究所内有奇怪妖气，为了查清真相而进入研究所内实习，谁料刚进入研究所就接连遭遇灵异事件，危急关头竟是死对头暮臣出手相救！在得知况暮臣是除妖师，专杀变异人时，她也不甘落后，企图查清真相，不料她不仅遇上了强大的殷昊天手下四天王，更卷入了争夺四大上古神器的斗争！在一次次被暮臣相救中，宇瞳开始在暮臣和青梅竹马的好友徐子昂之间摇摆，而暮臣的前女友徐佳陵，不仅是她最厉害的情敌，更在疯狂追求暮臣的过程中，令宇瞳和暮臣都陷入危机之中！讲述了坠入爱河的性格截然不同的两名男高中生，一边纠结一边走完人生的故事。As the name implies, iterator pattern is to access objects in an aggregation sequentially. Generally speaking, it is very common in collections. If you are familiar with collection classes, it will be very easy to understand this pattern. This sentence contains two meanings: one is the object that needs to be traversed, that is, the aggregated object, and the other is the iterator object, which is used to traverse the aggregated object. Let's look at the diagram: