15. Observer Mode
Explain that in the OrderPizza method, we do a lot of things, including calling the CreatePizza method to generate a desired pizza, and then doing a series of operations on the pizza. The key point is that Pizza is defined as an abstract class, which means that in the OrderPizza method we don't care what type this Pizza is at runtime, in other words, this is decoupling. The coupling between PizzaStore and Pizza is uncoupled.
Return handler;
The creepage distance is divided into two grades, and the creepage distance of 300V grade is ≥ 5 mm; Creepage distance of 600V grade ≥ 7mm. The creepage distance is designed for 220V voltage according to 300V grade, and the creepage distance is designed for 380V voltage according to 600V grade. For 220V and 380V high-power parts, character marks are applied to allow cuts in PCB design to meet the requirements of creepage distance.
虽然象牙塔早已失去了早年的光辉和荣耀，然而莘莘学子依然面临着校园生活和现实社会的断层。优异的成绩只属于过去，卓越的工作能力和处事方法却要在磕碰跌撞中学到。大学毕业没多久的女孩沈离（白冰 饰）进入一家公司上班，只不过职场前所未见的气氛和潜规则让她着实吃了一惊。企划部经理的秘书叶欣（左小青 饰）在公司内外人脉颇广，根基雄厚，可谓是当今成功职场女性的代表人物。和叶欣相比，沈离就好像一杯清澈见底、从没受过污染但又不值一文的白开水。到处踩雷的沈离幸运地得到了曾有过一面之缘的陈琮（胡歌 饰）以及海外归来的新任经理林立琛（郭栋 饰）的帮助与呵护。
再看项梁，安之若素，但眉眼之际透出的气息也有一二分惊喜，却又有几分愁容。
因为今天过节，陈启和吕馨还是花了不少心思，这顿午饭相当丰盛。
废柴青年大斌子在城中村混日子时，阴差阳错的因为屡屡破坏盗窃团伙作案而被卷入一起古董玉马争夺中。盗窃团伙头目辉哥因为赵总不肯交出玉马，于是派人跟踪并绑架了赵总的女儿赵慧。大斌子在被皮皮和小结巴追赶时，误入拍摄现场，得到了一身拍戏用的警服。从此上演了一幕幕囧态百出的笑料。后知后觉的他，在内心正义感的驱使下，决定跟盗窃斗争到底。辉哥调查后发现大斌子并不是警察，于是将他引至仓库暴打一顿。大斌子却意外的发现了被绑架女孩赵慧。大斌子联合城中村爱吹牛的算命瞎子一起营救赵慧。在营救过程中，废柴青年与白富美之间渐生情愫……赵慧表白大斌子，大斌子却自卑不已、只得跟赵慧坦白自己只是个废柴混混。但是，赵慧却很肯定，他是有胆量有担当的英雄。
"I am from Beijing, Ancestors raised dogs for the imperial court, The dog was not the pet of the nobles, Even royalty racing dogs, One by one, They are very expensive, In terms of seniority, it is a matter for my great grandfather's generation to move forward. Therefore, the family has inherited dogs from generation to generation, I have also saved up a lot of ancient books and materials in this field, Some of them were found and burned in the period of breaking the Fourth Old Age. Also because this was criticized during the Cultural Revolution, But it doesn't matter, The key is that I can look at dogs. I have been growing up in this environment, so I have had special feelings for dogs since I was a child. You see, unless I have to use it, for example, now, otherwise I never say the word "dog" but only "dog", because this is a kind of respect for dogs. This is like describing that it is normal for people to talk about "a", that is, to talk about "only" or "bar", that is to swear.
他们好不容易搞到一辆车，为了逃到安全地带，这几个幸存者踏上充满凶险的求生之旅……
2011年，日本发生了9级强烈地震，一万五千多人死亡，福岛核电站发生核泄漏，全日本陷入核辐射的恐怖之中。
和李二牛苦不堪言，但他们在训练场上互不相让，生活中相互关心，包揽了训练成绩的前三名，他们脱颖而出，成为了特种兵中的特种兵，与飞行员宋凯飞、来自武术世家的徐天龙组成了“红细胞”小组。
欧帝斯固然缺乏新经验，他的母亲可是一名性治疗师。他决定将母亲的衣钵发扬光大，於是在就读的摩尔戴高中设立性爱治疗谘询服务，造福无可救药的同学。他们水乳交融，其乐无穷，一起渡过人生最灿烂的时光。
蔡景云自幼就出社会，经过打拼多年，小有成就，之后蔡景云性格变得谨慎、多疑。随着生意的不断扩大，公司上事务交给了自己的好朋友肖杉全权负责，不久和蔡景云的女友褚歆勾搭在一起。本以为险中求生，不料发现自己横死街头，蔡景云开始对加害他的马啸林、肖杉和褚歆进行报复，真相也逐渐清晰，原来是自己同父异母的兄弟马啸林在背后捣鬼，炮制了捉奸，分家产并最终上位的计划。最终他们还是死于贪图美色，贪图钱财之下....
王爷，属下看见一个人，就是当年蛊惑属下跟哥哥火烧张家橡园的人，跟在白凡身边。
二十岁的肖可希望能够在她有限的生命里感受一次轰轰烈烈的爱情。她遇到了一个和她同样郁郁寡欢，行为怪异的林先生，他们的爱情开始升温。突然间她发现了一个恐怖的线索，让她发誓要找到当年杀害自己父母的凶手，她把追踪目标锁定在自己的姐夫——当年只有十三岁的何伟身上！是肖可身陷绝境的妄想猜疑？还是何伟另有隐情的连环圈套？一连串不择手段的追索逼供就能找到真相吗？错综的情感中爱能找到最后的归宿吗？是肖可身陷绝境的妄想猜疑？还是何伟另有隐情的连环圈套？一连串不择手段的追索逼供就能找到真相吗？错综的情感中爱能找到最后的归宿吗？
雍正（江华 饰）凭着自己的果断的处事方式及过人的才智，脱颖而出登上了帝位。登位后的他正准备继续开辟另一个繁荣盛世。
