So let's explain the rules of iptables in a common way. There was an analogy before, Each "chain" is a "checkpoint", Every message passing through this "level" must match the rules on this level. If there is a match, The message is processed correspondingly, For example, you and I are like two "messages" at the moment. Both of you and I are going to enter the customs at this moment. But the duke has a life, Only the imposing person can enter the customs, Those who do not meet this requirement are not allowed to enter the customs. So the soldiers guarding the customs followed the "rules" formulated by the duke. I began to look at you and me. In the end, you entered the customs smoothly, and I was rejected. Because you met the standard of "dignity", you were "released", while I did not meet the standard, so I was not released. In fact, "dignity" is a kind of "matching condition", "release" is a kind of "action", and "matching condition" and "action" form the rules.
Examples
三个孩子也有各自的苦恼，大哥亦得打肿脸充胖子筹钱给女友娇娇去欧洲玩，搞得自己没钱吃饭，为了多赚钱他答应帮同事解决被太妹仙人跳的纠纷；二妹亦珊从小就宣称自己是爱情绝缘体，却为了帮好友被劈腿男欺负，跟监跟到汽车旅馆去；三弟亦谦为自己不断勃起的问题痛苦，青春期对女体的绮丽想象让他气喘发作紧急送医。
在他没有注意的时候，刘邦和尹旭全都不声不响地发展起来。
Usually, I will choose the final submission model in a conservative way. I will always choose the integrated model after weighted average of reliable models and determine the relatively risky model. Because in my opinion, the more parameters, the greater the risk. However, I will not choose an unexplained model, even if it scores higher in the ranking.
可你也该明白：朝中文武分列，天下士农工商，各人专司一职，方才井然有序。
馨姐，这次出国一年多，我最想的就是你。
In the previous example of electric lights, a state mode program was completed. First, the Light class is defined, which is also called Context here. Then in Light's constructor, to create instance objects for each state class, Context will hold references to these state objects in order to delegate the request to the state objects. The user's request, that is, the action of clicking button, is also implemented in Context, with the following code:
Creates an object from its specific subclass. Q: How can it be realized? Answer: To create abstract classes derived from factories, that is, specific factories create specific products. Since products are to be created, product abstract classes and specific product classes are naturally needed.
你没生过任何害人的念头，问心无愧，也应该理直气壮。
但老爹貌似并不喜欢老天的这个安排，并没有封自己为太子，只专心修道，一切就这么拖了下来，于是自己这个裕王就这样被人叫了27年。
《说谎的爱人》首度抛出“家庭成长史”的概念，并深度探讨了“现代婚恋信任危机”的话题，将一个感人至深的亲情故事娓娓道来，在“家庭情感”的主线下，描绘了现代婚恋关系中充斥的各种无奈谎言。
羽濑川拓人，一个平凡无奇且极度中庸的高中生，不管做什么事都不突出，表现也是一路平～～到底，在学校甚至有“2年B班平均分数计算机”之称。然而如此平凡的他，却是在隐藏于现代社会的“魔法学园”上课的魔法师候补生之一。为了成为一位合格的魔法师，拓人必须参加各式各样的艰难竞技测验，但他却在“召唤实技Ⅱ”的补考中叫出了魔力值十万以上、神格值五千、属性不明且有着野兽耳朵的美少女“塔娜罗特”。这位謎样少女的出现，让魔法学园以及神界、魔界卷入了一场巨大的骚动！为了防止“塔娜罗特”再度暴走，学园因此强迫拓人、铃穗与她展开三人的同居新生活。孰知～～～塔娜罗特和铃穗为了争夺拓人，竟在学园展开一场大混战，两人把学园烧得乌烟瘴气，害得拓人因此被罚在家闭门思过。然而这时，一双跟他们三人毫无关系的阴谋魔手，却悄悄逼近他们身后……
I saw some players say that there are 2 million street panels, which cannot even pass the 100 floors, while others pass the 100 floors in their early 1 million years. Why? The panel is just too high.
一部电影拥有超过400万位演员，是怎样的体验？人生无限公司，每个参与过的人都是主演。每个“加班夜”都如此难舍难忘，演唱会内外，你的人生故事可有什么变与不变？五月天“人生无限公司”巡演，横跨四大洲、历时一年半、上百场巡回、超过400万观众，不断刷新纪录，不断创造新的感动。这部70亿人的自传，此刻翻越到下一章节：人生无限公司将在大银幕继续营业。
