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:
20世纪初，“孟河医派”传人沈蘅之，博采众家之长学习中医，先在家乡孟河开诊，后到上海行医。他以高尚的医德和精湛的医术，成为沪上名医。1920年，上海流行传染病“烂喉痧”，洋人医院趁机诋毁中医，提高药价，沈蘅之潜心研究出中医疗法，救治了大批贫苦病人，提振了中医声誉。
若是寻常的人，寻常的关系，寻常的事，场面上级别最高的戚继光必然会说杨参议意下如何？，然后杨长帆再谦虚一下子还是要戚参将决定。
可以说，这几家的崛起那是跟四老太爷分不开的，他们也都敬他如父祖一般。
Illustration of the incident
不过聊到备考，胡宗宪可就乐了。
Editor's Note: This article is transferred from WeChat's public number "KMCenter for Knowledge Management" (KMCenter). The author is Tian Zhigang, a well-known knowledge management expert, who is the author of "Your Knowledge Needs Management". The content of this article is the material of "How to Become an Expert". 36 Krypton is authorize to forward.
他在老家已有正妻胡氏，长子汪滶，因此即便成为东海之王，他仍未再娶妻纳妾，在外也只是收了毛海峰、杨长帆两位义子。
This time of the year is the best period for persistent dyeing, because the herb is astringent and rich in tannic acid, making the fabric critical, anti-corrosive and dorless even after sweating. An additional dyeing agent is worth mending: the sun. In fact, expose to sunlight will deep the fabric's color; this is commonly referred to as "the sun's dye".
流浪的孤儿Sarah（塔提阿娜·玛斯拉尼 Tatiana Maslany 饰）目睹一个女人自杀，因为与死者长的极为相似，遂决定假冒死者的身份领取一笔数目可观的存款。然而Sarah万万没有想到，自己竟然闯进了一个危险的谜局。在“扮演”死者的同时，Sarah发现了一个惊人的事实：她和自杀的女人其实都是克隆人，而且这批克隆人不止她们两个。不法组织为了达到不可告人的目的，创造了一批克隆的胚胎并将她们植入毫不知情的普通夫妻体内，让她们在不同的环境中出生、成长。没有人知道是谁创造了这些克隆人，也没有人知道他们的最终目的。这些克隆人必须尽快查明真相，否则一切都晚了，因为一个刺客正在将她们一个一个暗杀。
作为一部角色大多在高一年纪，场景设定于西班牙Zurbarán高中的青春肥皂剧，【Física o Química】藉由一群麻烦事多到数不清的青少年男女，以及成人纠葛亦不遑多让的高校教师们，一如片名所示，在封闭的学校小型社会中，展开一连串爆点不断、老师学生爱来爱去的恋爱大乱斗上。
污城有一个叫supermate事务所的奇葩组织，成员冰山男神莫斯利安，花花公子乔不思，筋肉林黛玉五郎，变态绅士白夜，悲情萝莉小丸子。他们原本过着平静无奇的生活，在一次工作任务中，意外遇见了自称夜猫侠的邵女心，随着邵女心的加入，事务所发生了一系列稀奇古怪的遭遇，在此过程中邵女心对莫斯利安穷追不舍，而在邵女心用持续的攻势即将抱得美男归之际，更大的阴谋悄然到来，究竟谁是幕后真凶，真相扑朔迷离。邵女心对莫斯利安的感情将何去何从，令对此剧抱有极大期待的广大粉丝更是翘首以盼.
本剧由漫威和Netflix联合打造，讲述拥有刀枪不入能力的卢克·凯奇(麦克·柯尔特饰)打击纽约哈莱姆区犯罪集团，重塑家园的故事。预计明年登陆Netflix。
Visitor mode is to encapsulate some operations applied to a certain data structure. Once these operations need to be modified, the data structure that accepts this operation can be saved unchanged. Visitor mode is suitable for systems with relatively stable data structures. It reduces the coupling degree between data structures and operations acting on data structures, making the set of operations relatively free to change. The specific structure diagram is as follows:
But then again, It is not entirely true to say that the fire cut-off at position 142 is exactly the same as that at position 169. Because in addition to the large consumption of ammunition, There is also a major reason: It was at that time that some comrades of the reconnaissance troops found out that the Vietnamese army had failed to sneak attack. Pull a large number of large caliber artillery prepared in advance out of the woods, Prepare to support the infantry that stormed various positions. After this message is delivered to the rear, The first task of our artillery group changed from blocking the Vietnamese attack to suppressing and destroying the Vietnamese artillery group. The two sides started an artillery battle over this, Although it is said that our artillery is not only in terms of performance but also in terms of quantity, Both of them had an overwhelming advantage, coupled with the precise positioning of the comrades of the reconnaissance troops, so it took 20 minutes to complete the complete elimination of the Vietnamese artillery group. Later, I also saw in a military magazine that when the artillery battle was the most intense, some artillery comrades who pulled the bolt swollen their arms. It is conceivable how fierce the fight was. " Li Haixin said.
童年贫瘠的时光，姜生（孙怡 饰）和凉生（马天宇 饰）相依相偎，尽管是没有血缘的兄妹，仍对彼此不离不弃，物质虽然匮乏，精神却无比充实。他们双双考入理想大学后一场车祸，凉生失踪，由此揭开了凉生的身世之谜。姜生苦心寻找凉生，程天佑（钟汉良 饰）陪伴左右，深深爱上了这个平凡而不平常的女孩。凉生回归，成为了程天佑的表弟，错综复杂的家族关系，让三人的生活再也无法平静。噩耗降临，凉生得了骨髓血癌，姜生为挽救凉生的生命，放弃出国留学的机会，割舍对程天佑的爱，回到凉生身边。尽管治愈希望渺茫，姜生相信不放弃就有希望。程天佑为爱绝望之后，背城而去。当病情逐步好转，凉生终于放下负担，昭告天下对姜生的爱，姜生却拒绝了凉生。在历经重重困难之后，姜生真正领悟到了生活的意义和爱情的真谛，勇敢追寻自己的内心。姜生远走法国，磨难之后，相爱的人终于收获了爱与信仰。
Hulu直接预订10集新剧《塔影蜃楼 The Looming Tower》，该剧根据普利策得奖者Lawrence Wright所著一书《塔影蜃楼：基地组织与通住9·11之路 The Looming Tower:Al-Qaeda and the Road to 9/11》 改篇。该项目由奥斯卡提名编剧Dan Futterman及奥斯卡与艾美得奖者Alex Gibney负责，他们与Lawrence Wright同为执行制片。
《塔影蜃楼》将描述本·拉登及基地组织是如何崛起，幷成为了威胁，以及以争议性的角度，讲述美国方CIA与FBI之间的竞争，无意中助长了9·11悲剧的降临，以及日后的伊拉克战争。（P.S：上年是9·11的15周年）
Tahar Rahim饰演年轻的FBI探员Ali Soufan，FBI高层干部John O’Neill的I-49 反恐部队的成员，由于他的才智﹑流利的阿拉伯语和理解伊斯兰教，因而迅速成为John O’Neill的门徒。Ali因为美国敌人曲解他的宗教而感到愤怒，因此不惜一切，甚至在极端分子之间卧底来阻止灾难发生。Jeff Daniels饰演John O’Neill，纽约FBI反恐部门主管，他确信美国已经成为基地组织的攻击目标，但他面临其他部门，尤其是CIA对他们不合作的问题。
