Modification Events
小苞谷觉得自己受到巨大的打击，这是他自出生以来从未经历过的感觉。
However, I feel that flat-heeled shoes are not as comfortable as shoes with some heels if I do squat back. On the one hand, the slope heel is conducive to solving the problem of insufficient squatting depth or upper body leaning forward after squatting caused by insufficient ankle flexibility; On the other hand, it is also conducive to the legs to stand up after squatting deeply.
默默地注视着众人的反应，续道：探子探查得知，现如今赶到的只是有尹旭本人和手下一千骑兵，越国大军尚且不能赶到。
爱国志士沈木风受命铲除大汉奸易安之。策划“冷风暴”计划的邵一夫是一名与组织失去联系的老地下党，藏身于租界华人联盟，为铲除大汉奸易安之，用生命的代价，帮助沈木风顺利打入敌特工总部。让沈木风想不到的是，特工总部的二号人物杨云轩并不是汉奸，而是一名潜伏的地下党。杨云轩身负重任，他要求沈木风暂不要除掉易安之，而是潜伏在易安之身边，为党做更多的工作。沈木风在地下党人杨云轩、欧阳倩等人的引领下，多次完成上级交给的任务。最后，加入革命队伍的沈木风为了营救自己的同志，点燃炸药与敌人同归于尽。
However, writing code in this way has the following disadvantages:
要是干不好，哼哼，别怪少爷不念旧情，我可要换人了。
Nine fairies
Give a specific example to facilitate everyone's understanding.
陈启想想还是答应了。
Liskov Substitution Principle, LSP (Richter Substitution Principle) means that subclasses must replace their parent types. In other words, in the process of software development, after the subclass replaces the parent class, the behavior of the program is the same. Only when the subclass replaces the parent class and the function of the software is not affected can the parent class be truly reused, and the subclass can also add new behaviors to the parent class. In order to look at an example of violation of LSP principles, the specific code is as follows:
千年前，天之佛一开天竞鏖锋战局，千年后的今日，太素剑封解除，是一剑划终，或者劈开另一波新局势？圣魔元史第三章，暗藏的佛厉真相，同时牵连沉寂在哭战天阁的止战之印，将为动乱的武林，交织出一场奇诡变局。
至尊宝（周星驰 饰）被月光宝盒带回到五百年前，遇见紫霞仙子（朱茵 饰），被对方打上烙印成为对方的人，并发觉自己已变成孙悟空。
同时对韩信也多了几分感激之情，毕竟机会是韩信给的，说实在的那个时候换做任何一个人，都能将陷于决堤的龙且斩杀。
村里有个单身男青年叫做“树”，常去村口的酒馆和朋友喝酒，在村里闲晃。“树”在汽修铺受工伤后，在医院被解雇，心生悲戚，竟无所事事调戏护士。一起长大的伙伴，有人开着好车成了煤老板，有人远在省城办私立学校。村子里的煤矿日夜开采，地面下沉，整个村庄不得不迁往别处。常被取笑被漠视的“树”干脆远走省城在学校打工，孩子们让他想起自己的童年。父亲和哥哥在“树”小时候就离开了人世，他常梦到自己的父亲，却从...
Let's define another initEvent function, which makes all ordinary objects have the function of publishing and subscribing, as follows:
The array in this topic is a sparse array and will not traverse (from indexes 3-9) "pits". These indexes do not exist in the array and will skip these pits directly. A value equal to undefined can never be filtered.
Interface
