The best way to conform to the opening and closing principle is to provide an inherent interface, and then let all classes that may change implement the interface, allowing fixed interfaces to interact with related objects.
剧版《香水》讲述在寄宿学校的六个人，因对气味的强烈兴趣而成为了朋友。多年后，其中一人被杀，警察将其他五人作为嫌疑犯进行调查，这个小团体的秘密渐渐被发现。第一季共六集，12月21日Netflix上线。
不堪同学欺凌而自杀的少女，被心怀妒忌的同事残害身心的上班族，突遭不明身份的人捣乱店面的店主，被高利贷布下陷阱害得家破人亡的少年……这些不幸的人们在一筹莫展时均遇到了一位神秘的“怨屋”（木下あゆ美饰），承诺会用完美的手法为他们复仇，“寻人、社会性抹杀、甚至杀人都可以”，事后则要收取高额报酬，同时要求他们在任何情形下都不能说出自己的事。
他本身并无信仰，看上去也不太虔诚。
Gymnastics
9-5 Number of login attempts: In the User class written to complete Exercise 9-3, add an attribute named login_attempts. Write a method named increment_login_attempts () that adds 1 to the value of the attribute login_attempts. Write another method called reset_login_attempts (), which resets the value of the attribute login_attempts to 0.
许久之后，令狐冲稍微清醒一点。
《中间人先生》为时长半小时的影集，启发自 2005 年澳洲电影《The Magician》，由该电影编导暨主演史考特雷恩（Scott Ryan）主创，聚焦身兼多重身分的雷休史密斯（Ray Shoesmith，电影原主角），描述他在成为父亲、前夫、男友、挚友以及枪手时所发生的种种故事。
If (pos > 0) {
This.num2 = num2;
女眷这边，用过早饭，葫芦外婆便对郑老太太说了送刘蝉儿去让云大夫考较的事。
只要明教一灭，他们就将是大侠，大英雄，大豪杰。
1. It is obvious that the buttonWasPressed method violates the open-closed principle. Every time the state of light is added or modified, the code in the buttonWasPressed method needs to be changed, which makes buttonWasPressed a very unstable method.
In the waters east of Japan, 4 people were killed, 33 people were killed and only 11 were left.
而姒摇却害怕，畏首畏尾，不敢轻易进攻。
(1) Register an Acceptor event handler into mainReactor. The event concerned by the Acceptor event handler is ACCEPT event, so mainReactor will listen to the connection request event (ACCEPT event) initiated by the client to the server. Start the event loop for mainReactor.
他们接受了李左车的建议之后，返回营寨的时候见到飘扬的赤色旗帜，知道营寨已经被汉军所占领。
