In 1995, GoF (Gang of Four) co-published the book "Design Patterns: Basis of Reusable Object-Oriented Software", which included 23 design patterns. Since then, GoF has set a milestone in the field of software design patterns, known as "GoF Design Patterns".
The next four patterns, including this pattern, are all the relationships between classes and do not involve inheritance. When learning, you should remember induction and the diagram at the beginning of this article. The observer mode is well understood, similar to email subscription and RSS subscription. When we browse some blogs or wikis, we often see RSS icons. This means that when you subscribe to the article, you will be notified in time if there are subsequent updates. In fact, in a nutshell, when an object changes, other objects that depend on the object will be notified and will change with it! Objects are a one-to-many relationship. Let's look at the diagram first:
幕末动乱期。为了寻找失踪的父亲，从江户来到京都的少女雪村千鹤。出现在这千鹤面前的，是展开令人意想不到的可怕行径的“罗刹”和土方岁三（崎山翼饰）率领的“新选组”的队员们。新选组一瞬间就将罗刹斩断。但是，千鹤的父亲？纲道，无论是罗刹还是新选组，都有着密不可分的因缘。不久，千鹤置身于新选组，开始寻找父亲…。
《金星小姐》纪录片时长约30余分钟。片中，金星对着镜头讲述了其在西藏的艳遇，在比利时演出时遭遇陌生人提出性要求的经历。其间，纪录片穿插了金星手术前后的画面。在整个片中，金星眼神妩媚，神态举止很女人。她对于男女之间事情直接，但感情生活并不一定幸福。
伊一、亚丽、陈欢三位浙江广电集团新生代“台柱级”主持人领衔带队，与30位浙江广电集团人气主持人一起组成了三大战队，在为期六周的时间里，秀歌舞才艺、秀知识储备、秀应变智慧，挑战高难度主题，赢得公益基金，帮助普通人达成他们的愿望。
安男询问伟先生他想要举办什么样的婚礼，伟先生说只要把他女儿当成他们家的一员就够了。他还征询朋达的意见，朋达说都可以。艾夫人在一旁听着，怒气冲冲地冲出去质问伟先生。她还说只需要办个小婚礼进行。
这是我连夜让美英几个编剧赶出来的，算作《天河魔剑录》的后续大纲。
上个世纪四十年代末随着解放战争的胜利，在我国南方许多城市农村需要大批从北方已解放地区的干部参与城市、农村的管理，南下干部就是在这种背景下才产生。本剧表现了这个群体到了南方特别是到了上海这样的大都市后面临的种种问题，他们要学会管理城市、管理工业、他们要与潜伏特务、土匪斗智斗勇，还要警惕糖衣炮弹的袭击；他们面临着爱情的选择，家庭的重组。本剧通过对孟思远、唐志先、陈家善、王三成、娄振、司徒梅、周玉、老骡头、刘小钟从山东"南下"到上海的这批南下干部的战斗经历、工作经历以及他们的情感历程给观众呈现出在那火热年代里，我党走过的这段不平凡的历程。
随着米兰达日渐成熟，她体内隐藏的外星人基因也渐渐苏醒，几乎到了汤姆所能控制的极限。她嗜杀的本性开始爆发，不断有无辜人类遭到杀害。为了彻底改变米兰达体内的基因构造，汤姆带着她驱车前往墨西哥寻找当年的实验伙伴福布斯（Dominic Keating 饰）。但是，一切似乎为时已晚……
Episode 31
Therefore, to sum up the distinguishing methods, the two main differences are:
什么？几大恶人先是一惊，但是想到燕南天现在还能活着真得是一个奇迹，这样的伤换成其他人早就死了无数次，而他们又不敢且不愿亲手杀了燕南天，便半推半就地同意了。
Every March 8th Women's Day, the unit can have half a day off.
杨长帆也不多说，拿起最后一柄，开盖填药上弹，从铳侧取下通条，捅了几捅，而后又撞上通条，拉下锁头，瞄向前方不远处的草人靶子，轻轻一扣扳机。
副将低声道：既然如此，属下将说说愚见了。
The chairman of MDT meeting is responsible for supervising the attendance of members so as not to affect MDT work and decision-making due to frequent absence.
@ Big Yuzi
2. Is it better to find a decoration company or to be private-shortcomings of the decoration company
Next, it will be a popular link for everyone. I will have the cheek to comment on the strongest skills of each department one by one.
