One problem with the factory method pattern is that the creation of the class depends on the factory class, that is to say, if you want to expand the program, you must modify the factory class, which violates the closure principle. Therefore, from the design point of view, there are certain problems, how to solve them? We use the abstract factory mode to create multiple factory classes, so that once new functions need to be added, we can directly add new factory classes without modifying the previous code. Because the abstract factory is not very easy to understand, let's look at the diagram first, and then it is easier to understand with the code.
-Fen!
This report is the monthly analysis of DDoS attack resources and the half-year governance analysis report in June 2018. Focusing on the problem of Internet environmental threat management, this paper makes sampling analysis based on DDoS attack event data monitored by CNCERT, focusing on the analysis of the problem of "which network resources did DDoS attacks originate from".
Charm V5: 3001-5000 Charm Value
提到章秉华的父亲，就要从母亲王玉岚说起，在她的一生中有两个重要的男人，一个是让她爱到忘我、恨之入骨的高旭东，当初在文革那样特殊的年代，玉岚未婚怀着章秉华，拼了命的想见高旭东一面，却苦苦等不到高旭东，这怎能叫她不恨？另一个男人叫做章凯，没有他，就不会有今天活着命的玉岚，于是对他，王玉岚是充满感激之情，也让自己费尽所有心力，都要抚养好他们两个的孩子，章秉国。
戴口罩就没病菌了？季木霖知道他误会了，索性顺着话说，甭做了，我出去吃。
听者一片哗然，纷纷询问详情。
Then look at branches 2, 3, 4 and 5 in the figure. As can be seen from the previous Android event distribution flow chart, they can reach the same conclusion, so they can be regarded as a situation.
1. State patterns define the relationship between state and behavior and encapsulate them in a class. By adding new state classes, it is easy to add new states and transitions
二楼有房屋四间，最西头空出一大间敞轩，围了半人高的木板围栏，外面廊道宽敞，屋檐前探，便是下雨，也不碍事。
南瓜见了低声问道：想吃那个？那是一碟辣味豆（蚕豆），喝茶的时候用来磨牙的。
31. The Company will build a regular warehouse as soon as possible to facilitate the unified management of the Company's assets.
最后，还是秦淼——她在军中呆了几年，那可不是白呆的。
杨长帆紧跟着说道，你看，若是在沥海练兵，离嫂夫人就……咳……戚继光咳了一声，打断这个话题，还是不要了。
在那个有美丽极光的冰雪世界，一对母女一起生活。母亲在出生之时，便被萨满告知是不祥之人，萨满还说她会给身边的人带来厄运。母亲年轻时在战争中痛失爱人，并被坏人强奸，坚强的母亲设计将坏人推入深渊。母亲捡到一个女婴，带着她逃到人迹罕至的遥远北方生活，多年之后，原来的女婴已出落成美丽少女。面对艰苦的自然环境，母女俩一起经历生死考验生存了下来。
3. Refactoring code using policy mode
