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:
白坡乡是宁安县最闻名的穷乡乱乡，被人们称为“百破乡”。近十年间，县委派去了七拨乡领导班子，换一茬，烂一茬。 新任女县委书记何春红，提议有胆识、有魄力的吴候乡副书记王天生，赴白坡乡任党委书记兼乡长。王天生到白坡乡上任第一天就对乡干部约法三章，并向村干部们提出，“公道、廉洁、勤政、惩恶、扬善”，“上经济奔小康、富乡、富村、富民”的号召。随后一系列令人意想不到的事件纷至沓来，如女孩装疯告状、煤矿采空区村民上访、宅基地纠纷、作局陷害副乡长包养情妇等，王天生临危不乱，办事果决，惩治村霸，为民伸张正义，坚决清除恶势力和腐败分子！率领白坡乡六万父老乡亲，过好日子奔小康……
2.3
童话世界里勇敢、坚毅的小公主是一个武艺出众，但又有些叛逆的女孩。这一天，熔岩魔为了复仇又开始行动，想要除掉公主这个“克星”。熔岩魔有个无所不知的魔镜，魔镜建议他派“小火魔”弗莱尔，扮成人形潜入公主身边，伺机杀她。公主也为了拯救自己的王国，踏上了寻找魔镜之旅。在这次冒险中，公主与“小火魔”建立了深厚的友情。最终，“小火魔”为了拯救公主，牺牲了自己，而公主也战胜了魔镜，拯救了自己的国家。
At the end of the article, I thank the author for one second.
A. Men's swimming: 50m freestyle, 100m freestyle, 200m freestyle, 400m freestyle, 1500m freestyle, 100m backstroke, 200m backstroke, 100m breaststroke, 200m breaststroke, 100m butterfly, 200m butterfly, 200m medley, 400m medley, 4x100m freestyle relay, 4x200m freestyle relay, 4x100m medley relay; Diving: 3m springboard, 10m platform, synchronized 3m springboard, synchronized 10m platform; Water polo: 1 event;
一九四零年，一个神秘代号——“佛爷”的出现，军统特务激活了潜伏在延安达三年之久的特务头子“佛爷”，将对边区展开大规模的特务行动，行动目标指向边区第一届参议会，威胁党中央毛主席的安全。智勇双全的鲁平，被誉为“八路军中的福尔摩斯”，凭借着长期地下斗争的经验与智慧，带领侦查科的六名优秀侦查员，克服重重困难，拨开层层迷雾，与“佛爷”领导的汉江班特务组织在延安展开了殊死较量。 国民党国防部高级军官代表团的机要参谋神秘失踪、延安郊外东高村出现的白发魔鬼。使得鲁平从上任开始就陷入了毫无
本剧讲述的是一个现在都市的勇猛干探陈剑兵，破获大毒枭雷振南贩毒杀人的大案故事。
老臣少君宫廷斗气各不相让，少君老臣口角之争各有千秋。在本剧的前传《李卫当官1》中，李卫由一名街头小混混，变成了一代名吏。在本剧中，一开始雍正已逝，乾隆即位。
Wang Sulong told the whole story of his real feelings in "eccentric", without any cover, calm and profound. Sincerely open your heart and make this "eccentric" successful with emotion, it is inevitable that the audience will not hear the "eccentric" self from between the lines and melody. Many people's impression of Wang Sulong mainly comes from his love songs. However, although this "eccentric" is also a love song with "long style" characteristics, it is different from the love song in the public's inherent impression of him. Not only does he write himself completely, but the whole song "Odd" has a thorough truth and aura.
才一会工夫，掌柜的就又出来了，对黄豆赔笑道：郑三少爷。
干劲十足的“笨蛋”田中望（冈田结实饰）、喜欢动漫的吐槽系腐女“阿宅”菊池茜（恒松祐里饰）、头脑聪明但没有感情的天才少女“机器人”鹭宫しおり（中村友梨香饰）等女高中生们，在没有男生的女子高中里，展开白白浪费“青春”的超现实主义的遗憾的日常。
There are many restaurants in the hotel park, including Huayu Haixi Restaurant, Yeyuan Hainan Flavor Restaurant, Boathouse Seafood Restaurant, Tao Xuan Restaurant, Caifeng Pavilion Home-cooked Restaurant and Seaside Barbecue. There are many choices, which is very good!
20,000 Yuan Hou Ruining/Cui Liangfan, Editor of "Deep" North Shaanxi Oil Field past: Ten Years of Resource Battle for Oil Giants, Yang Yue
以后你想吃什么好吃的，我带你去。
陈秀出身贫寒、父亲早逝，她跟母亲一样都是普通工厂职工，家里还有一名弟弟，从小患有聋哑症，智力稍微偏低，陈秀一直孜孜不倦的教导弟弟怎么学习自立。
FOX电视台预定了讲述蝙蝠侠世界的故事的新剧《哥谭市 Gotham》，该剧的主角并不是蝙蝠侠，而是戈登警长James Gordon。 该剧的制作人及编剧为《超感神探 The Mentalist》的Bruno Heller，该剧将以全新的视角讲述戈登警长和那些哥谭市的罪犯们之间发生的故事。
国难当头，宫廷的内斗却并没有终止，喜来乐身处党争之中，左右为难。凭借精湛的医术和智慧，他在慈禧、光绪、袁世凯和侵略者面前最终坚强地活了下来。
剧中Logan Roy及他的四个孩子控制着全球最大的媒乐媒体集团之一，年迈的父亲（Brian Cox饰）开始退出公司，而他的孩子则思索如何抓紧机会继承这帝国。其余演员包括Jeremy Strong﹑Hiam Abbass﹑Sarah Snook﹑Kieran Culkin﹑Alan Ruck﹑Nicholas Braun﹑Matthew Macfadyen﹑Natalie Gold﹑Peter Friedman及Rob Yang。
张杨去衙门后，张家上下就忙碌起来：收拾行李，采购京城这边的土仪特产等，打点带回去送亲戚的各色礼……乱纷纷的，老老小小都兴奋极了。
