Factory Pattern: Factory Pattern is a frequently used pattern. Classes implemented according to Factory Pattern can generate instances of one of a group of classes according to the provided data. Usually, this group of classes has a common abstract parent class and implements the same methods, but these methods perform different operations for different data. First of all, we need to define a base class. Subclasses of this class implement methods in the base class through different methods. Then you need to define a factory class that can generate different subclass instances according to conditions. After getting an instance of a subclass, developers can call methods in the base class regardless of which subclass instance is returned.
《自杀房间》采用真人和三维动画结合的方式，讲述了一个少年由于对现实绝望，自我流放到网络虚拟空间的故事，带领观众目睹了一场青春无因的反抗与自我毁灭。该片入围2011年柏林电影节全景单元，被誉为“波兰近20年最酷电影”。
他真的指着我的鼻子在骂了。
幕后花絮：
I'm going to play the article in the evening. I still feel a little flustered when I think about it. In fact, the landlord still has one lost lost to finish writing... … …
Ctrl + Q: Opens and closes the save dialog box
It can be used to divide namespaces and reduce the number of global variables.
Representative occupation: None
At present, many provinces (autonomous regions and municipalities) across the country have revised their local population and family planning regulations, and all localities have increased the duration of maternity leave for women to varying degrees. In 2017, Tibet explicitly extended the period of maternity leave to one year through a document jointly issued by government departments, which is also the longest maternity leave in all provinces in the country.
“血滴子以革为囊，内藏快刀数把，控以机关，用时趁人不备，囊罩其头，拨动机关，首级立取，是为冷兵器时期战斗工具之极致，创於清雍正时期，专为清除异己之秘密武器……”
当他们进入后发现，这里竟住着一个凶残嗜血且变态失常的邪恶家族。他们的到来，无异于羊入虎口……
该剧讲述在苏州长大的程子欣为了追随大学时期的男友来到北京，却被男友欺骗感情，伤心之时结识年轻建筑师方启宏和金融才俊张申然，之后与两人发生一系列跌宕起伏的情感纠葛。
我不是嫌你，毕竟屋里两个大男人，你住那不合适。
Attacks similar to those before the 2016 election may indicate the future trend: we are about to move towards the era of digital war, which is more harmful and hidden than traditional wars, and will not be as extreme as Pearl Harbor or 9/11.
《誓言无声》的故事发生在20世纪60年代的一个冬天。秘密回国参加我国新型潜艇研究制造的华裔专家，在途经香港时遭到台湾特务的追杀，险些丧命。小组开始查找内部存在的间谍，目标是我方的潜艇项目和协助工作的华裔专家，在台湾方面的指令下，敌人盗窃潜艇试验资料、暗杀许子风、摧毁潜艇试验车间、枪击华裔专家……经过一番斗智斗勇的生死较量，许子风他们的三人小组使敌人的阴谋均以失败告终，成功抓获了长期潜伏的间谍范仕成，保证了华裔专家的安全和潜艇项目的顺利完成。
本片描绘了在社会背后暗中活动、接受他人帮助的“影子军团”的活跃模样。以不起眼为极致的秘书们和管理不善的男子，利用绝密情报和网络，展现出了他们改变不讲理的日本社会的样子。
Tom Wisdom扮演大天使战团中最杰出的勇士Michael（米迦勒，电影中由Paul Bettany扮演），他在灭绝战争期间帮助人类击败天使战团。他现在住在Vega城，利用他的超自然能力来保护城中居民不受敌人的攻击。Anthony Stewart Head扮演Vega议院推选的总统David Weel，和Rysen将军一起治理Vega。他渴求权力，时常与Rysen将军发生矛盾。他不惜使用一切手段来确保Vega的稳定并巩固自己的统治地位。Roxanne McKee扮演Rysen将军的女儿Claire Rysen，在Vega相当于一个公主。她生活在Vega上流社会的顶层，但她意志坚强，比一般的富家千金更有魄力。Luke Allen-Gale扮演David Weel的儿子William Weel，他对政治不感兴趣，只想帮助老百姓。他现在是救赎者教堂的负责人。Shivani Ghai扮演Helena外交官Arika（非常规角色）。Helena是一个神秘的母系社会，非常好战。他们盘踞在原来的盐湖城，与Vega维持着脆弱的和平。
The singleton mode is characterized by two classes (one business class construction method is private, and the other factory class is responsible for saving singletons of business classes. Pay attention to the use of multithreading)
