"Is-A" refers to the "one" of one class and belongs to another class, while "Has-A" is different, which indicates that a certain role has a certain responsibility. A common reason for the wrong use of inheritance instead of aggregation is to mistakenly treat "Has-A" as "Is-A". For example:
何永强闻言，压着嗓子，以极低的音量问道：最近大批倭人在柘林……可是船主安排的？ show_style();。
贝丽丽依然不时犯迷糊，却阴差阳错地为朋友们牵线搭桥、排忧解难。同一屋檐下的创业生活伴随着贝丽丽自信成长，她的纯真善良打动了乔逸樵的心，两人力破万难，终成眷属。
英姿被上司误以为飞车而被调到陈小生（欧阳震华 饰）所带领的特遣队，小生与英姿都觉得对方是自己的克星，常常斗气。后来英姿在失意的时候得到了小生的多番安慰，渐渐培养出了感情，但此时父亲英雄却嫌弃小生比英姿大很多而反对这段恋情，两人的关系进退两难……
本片由申江导演兼编剧，拍于1971年，主角是侠女施恩及也正也邪的罗烈。故事描述，元朝统一天下后，元人将宋丞相打入天牢，屡次诱劝其归顺，亦借机将抗元义士一网打尽。义士白鸭儿拯救途上，遇着乐何如，邀共同救国，但乐自认跟从白为图美色，救国非少数人所能为，拒绝后旋即逸去……
Visitor mode: Pay attention to the change of encapsulation object operation, support adding new operations to the class structure at runtime, and define new operations on these class instances without changing various types in the class hierarchy.
2. The synchronized keyword locks the object. When using it, it must be used in the appropriate place (note that the object and process that need to be locked may not need to be locked in the whole object and process sometimes)
剧情讲述的是一个杂草女孩为了报复父亲抛弃母亲和别人结婚，她刻意接近同父异母妹妹的未婚夫后发生的爱情故事！
张槐扶着郑氏，不住低声安慰。
Because of the hot weather in Vietnam, So during the war, whether we or the Vietnamese army, All rolled up their sleeves, So I don't even have to cover my clothes. The liquid splashed up and the skin "paste" a full, I watched his whole little arm start blistering, At first glance, the bubble looked like a blister with worn feet. But much bigger than blisters, And from rising to rapidly expanding to exploding, In just a few seconds, However, there will be new blisters on the location of the fried blisters, layer by layer, without interruption at all. It looks like an object is rotting at a high speed visible to the naked eye. Well-this description is not very accurate. Let's put it this way, have you ever seen what it is like to slowly pour cold water on quicklime blocks? It is the way quicklime blocks expand and fall off layer by layer and piece by piece after contacting cold water. Just like that, It's just that it's not falling off, it's not a piece, It's a big blister, Each blister, Jiang Yong's forearm collapsed one layer down, Not that we are timid, But the scene was so scary, I went to "three dozen and three defenses" (note: "Three strikes and three defenses" is a proposal put forward by our country to the entire army and the whole people during the Cold War. In order to prepare for a big fight and an early fight against the Third World War, Military learning subjects of strategic significance, specifically, the "three dozen" are planes, tanks and airborne, and the "three defenses" are: anti-atomic "nuclear weapons", anti-chemical and anti-biological weapons). I have seen the skin erosion caused by mustard gas attack in the video during the class hours, but compared with this, it is simply pediatrics.
陈三元自小受叔叔陈小生影响，大学毕业后便投身警界，做其陀枪女警，因而认识了当文职的师姐朱素娥，素娥乃一失婚妇女，加入警队只是因为职高薪厚。素娥本以为自己幸福美满，岂料丈夫竟有婚外情，素娥伤心欲绝，离婚后为了生活唯有申请陀枪，拼搏升职。此时，素娥结识了小生，二人更由斗气冤家，渐渐变成爱侣。三元因表现出色被调往“反色情组”跟办事严谨的程峰合作，二人因意见纷歧，时有冲突。幸后彼此相互了解，化敌为友，成了一对好“兄弟”！但一次意外，三元发现对峰已种下感情，但当二人走在一起，三元又突然却步……
深海鞋业巨头冯仁受害致家道败落，女儿小曼为继承父业，钻研高跟鞋设计，参赛国际鞋业设计大赛，遭遇竞争对手的压迫和暗算，小曼失去冠军，却赢得了订单。最终，小曼发现父亲身亡、家道败落就是竞争对手所致的跌宕故事。
听见哗哗的水响，林聪慌忙转头，一边暗骂晦气。
《为爱所困》第二季依然围绕着PN主线和众多支线展开。在上一季的结尾里，Pun和No约定只做好朋友，各自回到女朋友身边。然而二人都知道，曾经发生的一切，注定无法消除和忘怀。No（Captain 饰）分外在乎Pun（White 饰），这不仅引起了朋友们的调侃，而且还让女朋友Yuri（Pineare 饰）产生了怀疑。在一次聚会中，No目睹了一段网络色情视频，而其中的女主角正是Pun的女朋友Em（Prim 饰）。No不知如何将Em出轨的事实告知Pun，只好独自喝酒解愁。Pun把醉酒的No送到自己家中，悉心照料。尽管他们一再回避，然而二人之间的情愫一再升温……
主人公操是完全不卖座的演歌歌手。 男主人公独自抚养女儿，艰苦经营每日生活。 然而他仍乐此不疲笑容满面。 那是因为，曾和亡妻约定过，总有一日要登上红白歌会的舞台！
露出黄熏熏一堆虫，个个都有大拇指大，一边招呼大家吃，一边快手地捏一个就往嘴里送，顿时目瞪口呆，胃里一阵翻腾。
剧版《歌舞青春》第2季发布前瞻视频，宣布东高戏剧部的学生们将要上演《美女与野兽》。新季目前正在拍摄中，预计今年Disney+开播。
一次古怪的事故将住在郊区的少年保罗传送到了一个平行世界！这个世界中从未发生过工业革命，强有力的名为“Spellbinder、迷惑者”（也可以翻译成“咒缚”）的团体利用公众的恐惧和无知统 治世界。依靠少女瑞亚娜的帮助，保罗必须同时从两个世界寻求帮助，否则就会被永远流放在这个世界中。
此三年不妨来杭州，一面处事一面备考，三年之后……吱。
斯洛博恩岛第一季……
