In the historical substitution principle, the methods of the subclass to the parent class should not be overridden or overloaded as far as possible. Because the parent class represents a well-defined structure, subclasses should not destroy it casually by interacting with the outside world through this standardized interface.
The general code is like this, and I feel that the code using the intermediary mode is similar, so I won't introduce it much here. The code in the book has advantages, but I don't feel that there is much difference, so I no longer use the intermediary mode to write code here. State mode is an unusually excellent mode, which may be the best way to solve some requirement scenarios. Although the state mode is not a simple to clear mode (it often brings about an increase in the amount of code), once you understand the essence of the state mode, you will certainly thank it for its incomparable benefits in the future. The key to the state mode is to distinguish the internal state of things. Changes in the internal state of things often bring about changes in the behavior of things. This article describes the state mode in detail
15年后，严林已是狼牙特战狙击手教官，他鼓励全国青少年武术冠军何晨光、颇有射击天赋的社会青年王艳兵、朴实却有超常毅力的农村少年李二牛一起参军。
Now let's look at the PLA cigarette oil filter, which is especially like plastic paper. This thing does look like plastic, but it is actually PLA, or polylactic acid. Someone once misunderstood that this thing was plastic, and then wondered how harmful it would be if the plastic was heated during smoking. In fact, this is a complete misunderstanding, because it is not plastic at all.
清末民初的南国祥城，民智未开，恶势力横行。捕头孔雪笠和仵作方栋，不畏邪恶，用自己掌握的现代科学知识和装神弄鬼的黑暗势力展开了一次又一次的斗争，揭穿了他们丑恶的嘴脸。老百姓也在正邪势力的对抗中，逐渐觉醒起来。孔雪笠与方栋虽性格迥异，但都有一颗赤诚的正义之心，两人在破解江湖秘术、扫除封建迷信的过程中，成为了一对生死与共的好兄弟。此间，孔雪笠和酒楼老板娘一见钟情，却因黑暗势力从中作梗险些劳燕纷飞。最终老板娘冲破迷信的束缚，有情人终成眷属。
于老乐（刘佩琦饰）说服儿子住进了幸福里养老公寓，跟好朋友重新成立了他们年轻时候组建的乐队，乐队不仅给养老院里的老人们带来欢乐，也为他们老有所为找到了途径。在养老院跟老人们的相处中，于老乐给幸福里的老人们带来快乐的同时也帮他们解决了不少麻烦。于老乐他们不仅实现了老有所乐、老有所为，同时也做到了老有所爱。于老乐找到自己的初恋情人白如雪，并跟白如雪圆满的举行了他们年轻时候就梦寐以求的婚礼。本剧在写老年生活的同时，表达了衰老的本质只是人机体的老化，而不是精神上的衰败，人到老年，只要精神不衰，年龄永远不是障碍。
杨长帆闻言，赶紧与翘儿绕过赵思萍。
故事讲述张皓南，刘传亨及郑胜本乃好友，其后南、胜考入香港飞虎队，亨则继承其父之黑帮事业，三人对立，但因感情深厚，遂仍能互相容忍。 亨妹传芳暗恋南，惜神女有心，襄王无梦，南与女警官利琪琪热恋，芳伤心之余，下嫁一直暗恋她的胜。 亨初涉足黑道，遭老叔父玩弄，幸得红颜知己Anita支持鼓励，终于排除异己，势力逐渐扩张。 亨终于成为黑道大阿哥，与南决裂，南誓要将亨绳之于法，南姐张五、胜、Anita及芳先后惨死，南、亨达到不死不休之地步……
Know the principle + can change the model details man: read the paper, read the paper, read the paper! Read source code read source code read source code! The source code reading here is not limited to reading the source code of one framework. You can look at other excellent frameworks. For the implementation mechanism of the same layer and the same function, you can think more, summarize more and write more. After a long time, there will definitely be gains. The purpose of reading the paper is to directly obtain the original author's thoughts, avoiding obtaining second-hand thoughts from blog interpretation of the paper. After all, everyone's understanding is different, and it is not necessarily right. Read it first, then look at other understandings, and discuss with Daniel more, thus broadening the thinking.
金智媛剧中饰演百货商店服务台工作的崔爱拉一角，她过去梦想成为一名播音员，所以每年都报考播音员公开招聘考试却每次都落榜，这是个不依靠别人，不信运气，不心存侥幸，非常自立的角色。
努尔特之王计划窃取夜间动物园的颜色，使动物处于极大的危险之中！而夜间动物园管理员威尔和他的朋友能拯救夜晚动物园吗？
Awakening Skills
寡人的要求不高，也不说是说服韩信起兵彻底叛汉，至少也要让他不与我们为敌，稳定后方……虞子期点头道：好的，此事臣会着手安排的。
《反骗天下》立足于“保险调查员”的独特视角，讲述了雅痞小叔方元（高仁饰）与天才少年米若（肖宇梁 饰）、二次元少女罗昕（范梦 饰）、社交女王纽梦（刘洋 饰）组成了保险调查公司“百应”，一起调查了各种新奇特的保险事件，共同寻求真相与正义的故事。
电视剧《红色通道》以中共六大的召开为背景，为了使我党高层领导得以顺利返回，地下党员在短短的十天之内，在绝境中用生命和鲜血铺就了一条红色通道。刘烨饰演了一位共产党的超级特工，为了帮助共产党领导顺利回国，带领地下党员们展开了一场斗智斗勇的保卫战。全剧讲的是短短十天内发生的惊险刺激的故事。从多角度出发，通过对伍权、周默涵、宋雅茹、杨小曼、王德彪等人各条线索的描述，展现了一场斗智斗勇的保卫对暗杀，而在此之外又将爱情与信仰穿插结合其中，让本剧既有惊险刺激的情节戏，也有感人至深的情感纠葛，情节跌宕起伏。
该剧主要讲述了 1914年，唐德号远洋途中，遭遇海盗，二副白竹声奋力救下英国人肯特与孤女陈小熙，却不知一切都是大副厉英骘等人为了谋财害命而策划。幸存的白竹声却诬陷为海盗同谋，构陷入狱，导致家破人亡，未婚妻邢悦秋也离他而去的故事。
以下四个女人，疏远和失去联系，在他们的40多岁团聚的机会，重新夺回自己的名声和招摇，他们作为讨厌的婊子-他们的90年代组，使他们成为嘻哈界的传奇。
一个订婚在即的中国女孩刘小熙瞒着家人独自前往泰国，只为见到让她思念已久的初恋爱人Ton，实现当初的那个懵懂约定。一个韩国女孩崔美珍为了逃避家族势力的斗争追求自由只身一人来到了泰国散心，不料却陷入各种囧境。一个泰国女孩纳姆为了帮助自己母亲治病接受了刺杀崔美珍的任务。就这样三个人在上天的安排下不期而遇， 并且一起经历了各种旅途上险境。出乎意料的是刘小熙与Ton这段恋情却因Ton身患癌症无疾终倍受触动。难道刘小熙的这段寻爱之旅仅仅是这样的结局么？崔美珍和纳姆的恩怨又能化解么？最终他们三又有怎样的结局呢？或许，在她们心中，总有一个人、一段故事，将挥之不去，日久弥新。
