Publish-subscribe mode is also called observer mode. It defines a one-to-many relationship between objects, allowing multiple observer objects to monitor a topic object at the same time. When an object changes, all objects that depend on it will be notified.
小女孩倪想想在暑假来到外公外婆的豆芽农场，却遇上黑心收购商时来运计划收购豆芽农场。时来运要开一座大型的罐头加工厂，将这里牧场里的动物全部变为速食罐头。外公外婆得知收购商给出的诱人价格后，开始动摇。只有想想舍不得，因为这里有她最快乐的时光。
Most cases that may be tried in rural areas may be subject to "summary procedure", that is, what we call "kang trial" at this moment. The "mock trial" project prepared can enable villagers to understand the real trial procedure and the majesty of the law. For this reason, we have prepared two cases, one civil case and one criminal case.
忻口战役是抗日战争初期中国军队在晋北抗击日本侵略军的一次大规模的战役。战役从1937年10月13日至11月2日，历时二十一天。参加作战的部队有阎锡山的晋绥军、国民党的中央军和中国共产党领导的八路军（又称第十八集团军）。这次战役是由第二战区（司令长官阎锡山，朱德、卫立煌、黄绍竑副之）指挥实施的太原会战的中心战役。该战役创歼敌逾万的纪录，是国共两党团结合作、在军事上相互配合的一次成功范例。
《铁甲雄心第二季》是浙江卫视联合创客星球推出的机器人格斗科技真人秀。《铁甲雄心2》从传统的1v1升级为团战，打造“未来军团”概念。从个人比拼到团队较力，更长娱乐时间，优化了观赏性，在延长观众收看时间和粘度的同时，通过更多对战的策略组合，增加悬念，利用更多的戏剧元素以及故事冲突，刷新观众对机器人格斗的传统认知。
18. The company's speed of solving things is too slow, and the things that have been waiting for solution for a long time cannot be approved.
MBN小确幸治愈综艺《自然而然》是讲述艺人定居乡村故事的真人秀综艺，各自怀着乡村生活的目标入住乡下村庄的艺人们，实现自己的“小确幸”、寻找治愈生活。
BaiDuInterview.prototype.writtenTest = function () {
If a license decision is made, a qualification certificate shall be issued and served to the applicant within 10 days from the date of making the decision; If the license is not granted, a decision of not granting the license shall be issued and the reasons shall be stated.
在以半吊子的心情进入的地方等待着他的是残酷的训练。
中国首部描述小人物保家卫国的另类抗战大戏，以市井小人物的抗日传奇故事为主线，辅以共产党、国民党、汉奸、山匪与日寇之间的矛盾和智斗，男一号小沈阳以黑色幽默的手法，全方位多视角地展现了中国人不屈不挠的抗日精神。
《东北灵异录》以农村诡异事件为主题，讲述了村里的得道高人老王与其义子降妖除魔的故事，由于老王有感知灵异的能力，所以每当村里有灵异的事件，老王都会在第一时间有心里感应，并携其义子将其化险为夷，直到有一天，村里的强拆大队打翻了钉子户家狐仙灵牌，狐仙复活了，并开始了她的杀戮，而老王也迎来了他人生中的重大挑战,就这样一场魔与道之间血海恶战势在必行，究竟鹿死谁手....
本作品是以志茂的漫画为原作，描写OL丸山真由美和其上司堤司部长的关系的爱情喜剧。故事的主人公圆相扑和丸山，比起三顿饭更喜欢工作。有一天，她在公司的酒会之后，和以“按时上去”为口号的堤司部长越过了界限。和死板的印象不同，maru喜欢上了温柔的部长，第二天“我们是大人，应该知道吧？”被说了。在剧中，两人工作方式和想法都不同，本剧将刻画令人着急的恋爱模样。
02 青 雲
《邪恶力量》（Supernatural）由美国WB电视台制作，讲述灵异超自然现象大多来自于美国的都市传说和民间传说。
Updated 4 September
It is said that programmers who do not know C source are not good cooks. In fact, I have been in contact with C source for a long time and have written it for a period of time. I just didn't write a tutorial at that time, Write one today, I'll write it later when I have time, You may also have found that the speed of my recent article update is very slow. It's a long story. I was going to write about domain name space before, but I didn't have time to spit out any more. Today, I'd like to introduce how to build a C source environment under Windows so that people who like to write C source can run their own code. OK, let's not talk too much. Let's simply talk about how to build it!
远征决定回国了！一时间在二年和小夜以及大慈和小曼两家引起了"非常关注"，围绕着除夕之夜的年夜饭，两家人开始了一场嬉笑风波……故事的核心是强调"爱与真诚是战胜一切不幸的源泉"，戏中年夜饭的"新鲜"的吃法定会让现代人看后别有一番风味在心头。
高一那年夏天，帆高离开位在离岛的家乡，独自一人来到东京，拮据的生活迫使他不得不找份工作，最后来到一间专门出版奇怪超自然刊物的出版社担任写手。不久，东京开始下起连日大雨，仿佛暗示着帆高不顺遂的未来，在这座繁忙城市里到处取材的帆高邂逅了与弟弟相依为命，不可思议的美少女阳菜。「等等就会放晴了喔。」阳菜这样告诉着帆高，不久，头顶的乌云逐渐散去，耀眼的阳光洒落街道……原来，阳菜拥有「改变天气」的奇妙能力……
Application Scenario 3: Security Agent, which is used to control the access rights of real objects. It is generally used when objects should have different access rights.
