The observer mode defines a one-to-many dependency relationship, allowing multiple observer objects to monitor a certain topic object at the same time. When the state of this topic object changes, all observer objects will be notified so that they can automatically update their behaviors. The specific structure diagram is as follows:
《京华春梦》道尽豪门的恩怨情仇，繁华背后的虚幻，一名弱质女子如何面对封建家庭的无情压逼与冲激？ 金家为北京大户，富甲一方，可惜金家五位公子不事生产，只爱吃喝玩乐，整个家庭只靠老父金鹏独力支撑。四子金振西颇有才华，且英俊潇洒，可惜习染纫绔子弟的浮夸，一贯……
The specific implementation is as follows:
起因是我姑姑高湘的报复。
今晚将棺木放置此处也是怕别人察觉，尽量与你方便。
面对日益严重的罪案，香港警方的组织日趋强大和现代化，警方人员的质素亦不断提高。十三集警匪单元剧《干探群英》便是描写警队中心的一组干探，在他们面对悍匪时，亦有自身的喜怒哀乐，从中揭示他们的查案经过及生活情况。
这时，墨子亦在一边说道：其实我们可是老朋友了，上次痞.子蔡，就是我采访的。
故事发生于2008年5月12日，四川汶川发生了特大地震。“一方有难、八方支援”，全国各地纷纷到达前线救灾，尽自己最大的努力救助受灾群众。山东省日照市莒县东皂湖村的十位农民，第一时间自发地驾驶自家农用三轮车，经历三天四夜，行程三千公里奔赴救灾前线。
《嫁衣神功》天下最最刚猛的武功，一出手便如同火山一般强劲，爆发出猛烈喷射，几乎毁天灭地。
Pool = new Vector < Connection > (poolSize);
"This' knowledge 'is out of ammunition, Before, we used ordinary bullets to hit these big wasps. So the killing efficiency is not high, After hitting them with '74 jets', We found that they were very afraid of fire. So he took out all the tracer armour-piercing bombs that were pressed at the bottom of the box. These bullets have three more functions than ordinary bullets: luminous, armor piercing and burning. This kind of bullet is mainly to use the tracer function to provide target indication for friendly fire. It works best at night, Then there is the use of this kind of ammunition to collect fire and shoot at the ammunition and fuel accumulation areas of the Vietnamese army. Because they can wear armour, So it can break through some relatively hard shells, Like car doors, Oil drum skins and so on, Then blow off inflammable and explosive substances such as ammunition and gasoline, In order to destroy the enemy's military materials, Because the above assumption was that the Vietnamese army might fight with our army in positional warfare, It is the kind of positional warfare in which the two sides fight each other. That's why so many of these munitions are being distributed, But this is not the case, The Vietnamese army did not have the patience to build positions to fight our army. But directly launched the attack, The envisioned positional warfare turned into defensive warfare, That's it, In the battle before position 149, there was basically no place where the three functions I mentioned above could be used. In this way, those traced armour-piercing firebombs are basically useless. In order not to let them get in the way, they were piled up at the bottom of all the ammunition. At that time, they were taken out at the right time. We used the battle gap to replace all the ordinary bullets with traced armour-piercing firebombs to hit the second batch of big wasps. The effect was not good.
广告公司女继承人沈傲男在父亲重病之时为可以继续跆拳道梦想，在父亲的嘱托中接手广告公司，却遭遇重大信任危机；在不打不相识的下属云舒的帮助下，查明真相，最终收获事业与爱情的故事。
根据匿名举报，周鞍钢来到好友方兴的集团内部，从监管经济问题入手，层层剥茧、丝丝入扣，发现与新药相关的人和事存在诸多疑点，凭着职业的敏感更警觉到这一国有企业投资上亿元的新药配方及样品受到大多利益集团的关注，面临的艰险更激励他全身心地投入到工作中去。
ある朝パニック 大地真央
The "hedgehog" technique is a very effective one among all kinds of questions to promote business transactions. The so-called "hedgehog" reaction is characterized by you using a question to answer the customer's question. You use your own questions to control your discussions with customers and lead the conversation to the next step in the sales process. Let's take a look at Hedgehog's reactive questioning method: Customer: "Is there any cash value in this insurance? "Salesman:" Do you attach great importance to the question of whether the insurance policy has cash value? Customer: Absolutely not. I just don't want to pay any extra amount for the cash value. "For this customer, if you just sell him cash value, you will push yourself into the river and sink to the bottom. This person does not want to pay for the cash value, because he does not want to regard the cash value as an interest. At this time, you should explain to him the meaning of the term cash value and improve his understanding in this respect.
一个混不下去的老炮儿、一个吊儿郎当的中国导游、一个残暴歹毒的毒枭老大、一个唯利是图的歌舞伎町老板、一个胸怀大志却碌碌无为的中国警探，这群人的命运被一个素未谋面的“卫生巾杀人魔”所紧密地联系在了一起，最终善有善果，恶有恶终。
Now, let's imagine why these "checkpoints" are called "chains" in iptables. As we know, The purpose of a firewall is to match "rules" for passing messages, Then execute the corresponding Action, So, when the message passes through these checkpoints, You must match the rules on this level, However, there may be more than one rule on this level, But there are many rules, When we put these rules in a chain, A "chain" has been formed. Therefore, we imagine each "checkpoint" as shown in the following figure. In this way, it is more appropriate to call them "chain". Each message passing through this "checkpoint" must match all the rules on this "chain". If there are qualified rules, the corresponding actions of the rules will be executed.
影片讲述了娜奥米·沃茨与罗宾·怀特饰演的两个母亲分别与对方的儿子产生了忘年恋情。
当查理在阿尔玛的后院右侧找到缅因州州长节日庆典的完美圣诞树时，阿尔玛和查理相遇了。
