In order to make good use of the principle of composite reuse, we first need to distinguish the relationship between "Has-A" and "Is-A".
Let's continue to use the monomer mode to implement a pop-up demo;. Let's not discuss the use of single mode to achieve, we want to see how we usually write code to achieve the pop-up effect; For example, we have a pop-up window, which is definitely hidden by default. When I click, it needs to be displayed. Write the following code:
1. Written examination:
唉，桃花谷草长得好深哩，没法进人了。
老婶儿啊，差不多喽。
敬文娘诧异地和李长明对视一眼，道：你还真说对了。
新年伊始，某市立医院的急救医师松冈(妻夫木聪饰)接下了一个急诊病患，病人高烧、痉挛、吐血、内脏 受损情况十分严重，但无法确诊是什么病，由于找不到有效的治疗方法，病人很快身亡。松冈还没有从一时的消沉中回过神来，事态却已经飞速升级。以同事安藤医生（佐藤浩市饰）为首，一些医疗人员也染上了这种怪病，接着又波及到患者、外来人员……医院上上下下数不清的人被病毒感染，整所医院陷入了混乱。
而徐风从未料到季木霖口中所谓的机会，竟是这样的机会，一时间也有些慌忙无措。
《蜘蛛头》改编自乔治·桑德斯的《纽约客》短篇小说，由约瑟夫·科辛斯基（《创：战纪 TRON》、《壮志凌云：独行侠》）执导，瑞特·里斯和保罗·韦尼克（《死侍》、《丧尸乐园》）担任编剧，是一部风格迥异、黑暗搞笑的心理惊悚片。
1921年，春，一场突如其来的金融“信交风潮”席卷了整个上海滩，永仁堂药业董事长周敬之为了阻止这场金融风暴，实现经济报国的理想，最终倾家荡产，甚至失去了生命……
Abstract Factory: Creates a series of interdependent objects and can change the series at runtime.
It was signed by Vivo.
1. The burning object will attack the surrounding 200px objects in the same camp with fire attribute at an attack interval of 1S.
10. The one-dollar hot pot only takes 2 minutes from ordering to dining, paying more attention to the concept of time and making it more convenient.
这就对了。
夏天天刚把校霸郭之宇调教成“忠犬”男友，就遭到了母亲何青柠的强烈反对，在何青柠心中，夏天天的公司总裁秦至才是完美女婿，她决心要亲自出手，却没料到，偶然的一天母女二人居然互换了身体！何青柠开始顶着女儿的身体为所欲为，夏天天则用母亲的身体奋起反击，俩人在鸡飞狗跳的互换人生中慢慢理解彼此。与此同时，两段高甜恋爱也正酝酿发酵......
该公司遭受了一系列愈演愈烈的丑闻和媒体的严密审查。2018年，他们的使命——连接地球上的每一个人——似乎大错特错。数据泄露、假新闻和对用户安全的黑客攻击威胁要摧毁马克·扎克伯格所建立的一切。
OCP (Open-Closed Principle) principle emphasizes that a software entity (class, function, module, etc.) should be open to extension and closed to modification. That is, every time there is a change, the behavior of the existing type should be enhanced by adding new code instead of modifying the original code.
