C) Metaphors of everyday life. Use some real-life examples to illustrate the so-and-so pattern, which can enable you to quickly grasp the purpose of a certain pattern and the structure of the implementation code. At the same time, you should realize that this metaphor is like telling you (2 +3) 2=22+2*2*3+32. You need to draw an analogy and come to (a + b) 2=a2+2ab+b2. The concrete application of the model in practical work is equivalent to the application of algebraic formulas.
The SYN-ACK retransmission number server sends the SYN-ACK packet. If the customer confirmation packet is not received, the server retransmits for the first time, waits for a period of time but still does not receive the customer confirmation packet, and retransmits for the second time. If the retransmission number exceeds the maximum retransmission number specified by the system, the system deletes the connection information from the semi-connection queue. Note that the waiting time for each retransmission is not necessarily the same.
In real life, China's income tax is divided into enterprise income tax, foreign-invested enterprises or foreign-invested enterprises income tax and personal income tax. For these three types of income tax, each is calculated in a different way. Personal income tax has a personal income tax calculation method, while enterprise income tax has its corresponding calculation method. If we do not adopt the policy mode to realize such a requirement, we will define an income tax class, which has an attribute to identify the type of income tax and a CalculateTax () method to calculate the tax. In this method, we need to judge the tax type and calculate the income tax for different tax types through if-else statements. Such an implementation can indeed solve this scenario, but such a design is not conducive to expansion. If the system needs to add an income tax in the later period, it has to go back and modify the CalculateTax method to add an additional judgment statement, which clearly violates the principle of "open-closed". At this time, we can consider using the strategic mode to solve this problem. Since the tax method is the changing part of this scenario, we can naturally think of abstracting the tax method at this time, which is also the essence of the implementation of the strategic mode.
时尚leaf集团面临生存危机，集团少东家宋驰关键时刻接管了集团成为了新任总裁，他向宋父立下军令状，给他三个月的时间，主推“时尚平民化”项目，化解leaf集团的危机。一心想做时尚界“女王”的筱樱桃阴差阳错进入遭遇经营困境的时尚leaf集团，成为了集团“魔头”少爷宋驰的下属。宋驰和筱樱桃带领leaf集团化解危机开拓了新的市场，让中国时尚品牌一步步走向世界，与此同时二人也收获了甜美的爱情。
Mobile Phone
唐僧师徒四人取经归来，加封斗战胜佛的孙悟空将如意金箍棒回归定海神针，巡视须弥四洲，降妖除魔。在前往锁妖塔肃清出逃妖魔之际，发现天庭指人为妖的行径，随即救出是人非妖的女子月弦，一路护佑旨在向观音菩萨寻个出路，一路上朝夕相处，与月弦暗生情愫，不料蜂拥而至的天庭追兵以及清风道长的背后使诈…孙悟空一如当年勇猛，为了一人一妖再战天庭。
同安分队队员可爱又搞笑的互动
《玩游戏的朋友》为娱乐社交游戏综艺。每期节目嘉宾会通过自己的社交圈邀请王者玩家深度参与节目。通过解锁玩家的标签了解王者玩家的故事，并组成两队与王者玩家展开5V5对战，最后进行复盘。
MDT meetings should have an agreed agenda time, and all must abide by the time without delay. If there are special circumstances, patients who need urgent discussion can also be added at the end of the discussion.
大家虽然有些摸不着头脑，但都依言退下了。
北方……大江以北，至少也是淮水以北将都会是汉国的领土。
FOX已续订《奥维尔号》第二季。
患有记忆过剩症候群的徐振宇（俞承豪饰），虽然在别人眼里是记忆天才，但真正的他，却因为拥有无论是喜悦和悲伤还是痛苦，种种记忆都比普通人深刻数百倍的能力，被医生诊断为“障碍”。积极乐观的他克服自身的障碍，开始作为律师所向披靡之时，人生再一次向他抛出了残酷命运的问卷。
(1) When the server program starts, ChannelPipeline will be configured. ChannelPipeline is a ChannelHandler chain. When all events occur, a method in ChannelHandler will be triggered. This event will propagate in the ChannelHandler chain in ChannelPipeline. Then, get a NioEventLoop from the bossGroup event loop pool to realize the operation of the server-side program binding the local port, register the corresponding ServerSocketChannel on the Selector in the NioEventLoop, and register the ACCEPT event as the event of interest to the ServerSocketChannel.
小葱忙仔细跟她回禀刚才的情形。
他的笔名是司马思马，不过大众都喊他为司马二，这个司马二不仅是他名字的简称，更是指他很二。
而蒸蒸日上的TIG却遇到了撤资危机，事业和爱情在一夜间仿佛都开启了终极关卡……
This subject object notifies all observer objects when its state changes so that they can update themselves automatically
看点一：老舍原著改编 《我这一辈子》本是老舍的名篇，他的作品《四世同堂》、《骆驼祥子》、《茶馆》等早已改编成影视作品，为观众所耳熟能详。《我这一辈子》有着深厚的文学基础，一直以来都被影视圈人士所关注。1951年，表演艺术家石挥成功地自导自演了一部同名电影，曾荣获文化部颁发的优秀影片奖，并得到广泛好评。
