The principle of opening and closing means opening to expansion and closing to modification. When the program needs to be expanded, the original code cannot be modified, but the original code should be expanded to achieve a hot plug effect. Therefore, a summary of one sentence is: in order to make the program scalable, easy to maintain and upgrade. To achieve this effect, we need to use interfaces and abstract classes, etc. We will mention this point in the later specific design.
然而洪兴社团的众人已经按捺不住躁动。人人自危的情势开始：分管不同领域的华超（吴镇宇饰）、黎继祥（曾志伟饰）、钟孝礼（张智霖饰）、游志标（陈小春饰）几人当中，有的已经被警方掌握了犯罪证据，有的正陷入一场恐慌，看不清身边谁人是卧底身份。警方铲除洪兴社团即日可待。
一位年轻的护士在一家老城医院开始轮班。在一次奇怪的幻影后，一位年纪最大的护士告诉她，一位名叫摩尔的病人几年前进了医院。他的尸体在一场火灾后被完全烧焦了。医生给摩尔先生紧急做了手术。但没有人愿意帮助他。疼痛和药物让他发疯——一天晚上，一个护士去了他的房间，但他的床空着。再也没有他的消息了。铃声打断了故事。电话来自摩尔先生的房间。
Koharu also stayed up all night at the police station, just outside the door.
惊疑之间，南边的炮声再度传来。
本武侠片由龙逸升编导，惠英红、何家劲及关之琳主演。 故事描述，游侠杜孟飞（何家劲 饰）奉师命下山闯荡江湖，途遇黑道中人捉拿沐龙门女弟子沐婉儿（关之琳 饰），杜挺身相救，沐万分感激。未几，杜又见黑道中人围攻少女李赛男（惠英红 饰），乃将之救出，孰料李反斥杜坏其好事，令杜啼笑皆非。及后，杜无意中听得一段二十年前的江湖恩怨，并得知黑道首领乃李之杀父仇人，而沐则是黑道首领失散了的女儿……
讲述了市政厅登记员Kate Dickenson（Jensen饰）在每天生日、结婚和死亡的各种登记注册与个人生活之间的纠结。在被提拔成为她这个职位最高的主管之后，Kate发现自己被当一个现代职业母亲所需要肩负的无尽责任搞得疲惫不堪。她的一个一直以来对她不满的同事威胁她要曝光一个有关她过去的秘密，这使得情况更雪上加霜。
张槐见他定定地站着，走过来问：想起啥了？板栗低声将自己的想法说了。
雷蒙德的种种举动让联邦探员们手足无措，他们既急需雷蒙德所掌握的线索，又无法相信这个有着重重黑暗历史的男人。雷蒙德的真实意图何在？他又为何偏偏选中了看似单纯的莉兹作为搭档？和传奇人物合作的这一段经历，对于年轻的莉兹来说又代表了什么呢？
The first scenario: The preload picture function without the proxy is as follows
400,000 British troops died in World War II, of whom nearly 380,000 were soldiers. About 30,000 deaths in the Pacific Ocean; The rest are in Europe and North Africa
Under the "Learning Book" section, In addition to the relevant books concerning General Secretary Xi Jinping, they also include the Complete Works of Marx and Engels (82), the Collected Works of Marx and Engels (11), the Selected Works of Marx and Engels (4), the Complete Works of Lenin (60), the Selected Works of Lenin (4), the Selected Works of Lenin (5), the Selected Works of Mao Zedong (4), the Collected Works of Mao Zedong (8), the Selected Works of Deng Xiaoping (3), the Selected Works of Jiang Zemin (3) and the Selected Works of Hu Jintao (3). These books are all PDF versions, although catalogue reference and text retrieval are not yet available, which has provided great convenience for ordinary learners.
年轻英勇的维京勇士小嗝嗝驯服受伤的龙，更与它成为好友。经过五年时间，博克岛已是个维京人与龙和平共存的天堂。然而，成长却意味着责任。为了寻找答案，小嗝嗝与忠诚的没牙仔开始了他们的冒险旅程，但结果却超乎预料。一方面，小嗝嗝发现神秘的驯龙骑士，正是失踪多年的亲母沃尔卡；另一方面，嗜权的德雷格与龙猎人埃雷特结盟，威胁到博克岛上人与龙的和平。为了保护深受大家喜爱的龙，阿丝翠德、高博，维京伙伴们：鼻涕虫、鱼脚司及双胞胎拉芙纳特、特夫纳特都出手相助，加上小嗝嗝、身为部族的首领的父亲斯多戈及母亲连手合作。在这期间，小嗝嗝一直追寻的答案就在不知不觉以意想不到的方式出现了
"Genius" is the product of training//007
2. All state-related behaviors are packaged in the buttonWasPressed method. If strong light, super light and ultimate strong light are added to this lamp in the future, it will be impossible to predict how much this method will expand. Of course, in order to simplify the example, when the state changes here, simply print a log and innerHTML that changes the button. In actual development, there may be much more things to deal with, that is, the buttonWasPressed method is much larger than it is now.
以女高中生们的学校为舞台，描述使用剧中关键物品塑料模型枪，赌上生存的战斗的原创故事。握著故事关键的生存游戏Girl GunFight中，分别由一名指挥官和三名玩家组成的4个队伍参加。根据队伍颜色的不同，而有完全不同的战斗方式也是一大看点。是一部集结了特摄专家进行挑战的新时代成人向特摄电视剧。
