For interface programming, a lot of changes that may occur in the system in the future can be isolated. Why? If the code is written for an interface, he can implement the interface with any new class through polymorphism. However, when the code uses a large number of specific classes, once new specific classes are added, the code must be changed. Violating the opening and closing principle.
+= is to inform you when this event occurs, and -= is to inform you no longer when this event occurs.
EXO成员吴世勋确定主演网络电影《独孤：倒回（暂译）》，吴世勋将在片中出演主角姜赫，该片将有80%的动作戏，将由电影《恶女》的武术导演参与制作，《恶女》的副导演崔恩重也将执导此片。《独孤：倒回》改编自同名人气网漫，讲述了创下大型事故后在街头徘徊的阿赫、摔跤选手出身的泰镇以及试图摆脱混混圈子的钟日这三个男人之间的友情。
"As far as I understand it, If a mouse is the size of a domestic cat, But also rushed up in droves, It should be very dense, The goal is quite large, According to the weaponry at position 149, I don't feel too stressed, If you cooperate with the large "killer bees" to form an open space, you can also deploy some firepower to use tracer armour-piercing firebombs to the air and other weapons to the ground, whether it is a step machine gun, or rocket launchers, recoilless guns, as long as the command is proper, fire shooting, resist the attack of a group of mice, I think it is not too difficult? Is this kind of big mouse not only large in size, but also able to withstand bullet attacks? Or are they too fast to be easily hit? " I am somewhat puzzled by what Zhang Xiaobo said. He said his point of view, See if he has any answers, With the experience of strange dogs in position 142 interviewed earlier, Plus he just said that the rat moves quite quickly, So I preconceived that he would say that the reason why these mice are difficult to deal with is similar to that kind of strange dog, because the speed is fast and the movement is flexible, which leads to low fire killing efficiency and short reaction time, which leads to great pressure on position defense. As a result, I didn't expect him to give an answer that is not any one of my many assumptions:
明阳市老书记（焦晃 饰）退居二线，省委书记华波（傅学诚 饰）力排众议，推举高长河（张国立 饰）上任。微服上任的高长河一踏上明阳的土地就频频“触雷”，先是明阳轧钢厂浪费国家数亿资金却没轧出一寸钢，至今还拖欠职工集资款，紧接着又因举报牵扯出烈山县腐败大案，此案还涉及髙长河的妻子梁丽（刘蓓 饰）。严峻的形势摆在面前，高长河怀着对党的忠诚，立刻投入到棘手的工作当中，他首先促成了东方钢铁集团与轧钢厂的合并重组，严查轧钢厂內部贪腐，偿还拖欠的工人集资款。由于在工作中与老书记产生严重分歧，双双把状告到省委。百年不遇的洪水来了，新老书记能摒弃前嫌吗......
二更求粉红订阅。
"The first few hours of the battle were the same as before, We use all kinds of weapons in our hands in our positions. Strike the attacking Vietnamese troops, The exchange of fire was very intense, The front of the position was covered with the bodies of the Vietnamese army. We also have a lot of wounded on our side, However, after all, it is based on strong fortifications. More wounds, less deaths, In particular, the wounded are mainly minor, All of them can continue to fight without getting off the line of fire. At that time, my monitor was quite happy. If you play like this, There's not much pressure to hold position 149, The Vietnamese army that could fight could not even get close 400 meters away from the front of the position, As a result, it was only over an hour after he said this. I remember it was one or two o'clock in the afternoon. Something is wrong, The left and right wings of the position, It's two sparse rain forests, The positive was the same, But before the war, in order to facilitate the offensive forces to assault, All of them have been cut down by Vietnamese troops, But it also broadens our horizons, However, it is still unclear what is going on in the rainforest on both sides. Just when something was wrong, First I heard a "buzzing" sound inside, At first it was a little bit, Later it grew bigger and bigger, At last it was so big that it could almost cover the shot when it was fired. No one in our position knows what's going on, All of them stretched out their heads and looked in the direction of the sound. When the "buzzing" sound reached its peak, they saw that a large area of flying insects flew vertically from the rainforest on both wings. If the number were small, whether the sound or flying insects could not be heard or seen at this distance, but now they could hear clearly.
Publish-subscribe mode is also called observer mode. It defines a one-to-many relationship between objects, allowing multiple observer objects to monitor a topic object at the same time. When an object changes, all objects that depend on it will be notified.
两人倒是十分投契，大苞谷随时向秦旷请教儒家经义，秦旷也不停追问他在海外见闻。
你是否也曾经历过，爱情中惯性被打破：煎熬的异地恋，或是突如其来的“被分手”。
2001年 ルパン三世アルカトラズコネクション 通往恶魔岛
清末，神秘苗疆有一条美丽的河叫剑河，剑河两岸住着不相往来的卧龙寨（侗族）和回龙寨（苗族）。中原武将之后梁师傅（梁小龙 饰）寻着先辈的足迹来到剑河以教武为生，成了远近闻名的功夫教头，并多次帮两个寨子免遭匪帮袭扰，并保护卧龙寨情人泉的密物“藏宝图”。李世荣（李炳渊 饰）生于卧龙寨，自幼与梁师傅习武，其英俊、武功高强和厚道，使得回龙寨的月娥（崔煜林 饰）和他本寨子的潘彩凤（高利虹 饰）都为其倾心，令其师兄周富贵（曹帅 饰）羡慕嫉妒不已。
A Toronto police officer investigates a murder while visiting his father in India.
抗战大片《战地狮吼》讲述了抗日战争时期，某镇武工队英勇与敌人斗争的故事。陈廷嘉在《战地狮吼》中饰演武工队政委曲梅，这也是她第一次出演抗日题材作品。剧中的曲梅，年少经历过苦难，敢爱敢恨，加入八路军后把一腔强烈的爱国之情投入到与敌人的斗争当中。张兴哲饰演的狮子黑赵六，出身梨园戏班，作为远近闻名的花脸名角，身负高强武艺有着侠肝义胆，一张脸谱成为他行侠仗义的标志，他与师妹九岁红杏儿(贾青饰)青梅竹马的爱情让旁人艳羡不已。然而天有不测风云，“狮子黑”赵六先后经历了父亲被日军残杀，妻子被恶徒霸占生死未卜，师弟的背叛与阴谋算计，自己身陷囹圄，受尽酷刑，九死一生。在被八路军解救之后，毅然投身革命，一身绝技、一腔热血组建了自己的“狮子营”，带动起整个晋西北人民奋起反抗日寇和汉奸的热潮和风暴，成就一代抗日传奇英雄。
Zhihu netizen @ Tingting recalled that her parents' divorce at the age of 13 was a "relief" to her.
医院接二连三出事，是管理疏忽，是技术失误，还是无力回天的医学局限？武明训与钟立行产生严重分歧。一群充满理想与献身精神的医生在理想与现实中艰难跋涉，最终找回希波克拉底誓言给予的崇高与责任和 “医者仁心”的职业信仰。
新一季Will Pascoe会代表Samantha Corbin-Miller担任制片，同时新增两名演员Geoff Bell及Josette Simon。 Geoff Bell饰演国际犯罪组织的专业「清道夫」Colin Dawkins﹑Josette Simon饰演MI5和MI6的特工Rowena Kincade，FBI匡提科的前教官，他多年前看中了女主Emily Byrne（Stana Katic饰）的潜力，但无法确定她是敌是友。
七月毕业季，人生中最美好、最热烈的夏天，每个年轻人都抱着对未来的茫然尽情狂欢。热爱自由、特立独行的顾悠悠（张予曦饰）热爱街舞，在老妈（黄小蕾饰）的期许下学习着芭蕾舞，在每个人的青春时代，有彷徨也有热血，但都面临最终的选择，在男朋友毛雪山（黄景行饰）的鼓励下，顾悠悠决定跨出追寻梦想的那一步，拒绝了中央芭蕾舞团的邀请……亲情、爱情、梦想的激烈冲突，让毕业季的夏天热闹非凡。
一会工夫。
