Another expression of the minimum knowledge principle is to communicate only with direct friends. As long as there is a coupling relationship between classes, it is called a friend relationship. Coupling is divided into dependency, association, aggregation, combination, etc. We call classes that appear as member variables, method parameters, and method return values direct friends. Local variables and temporary variables are not direct friends. We require unfamiliar classes not to appear in the class as local variables.
唉，功劳就是功劳，若是没有韩元帅，我汉国如何能有今日。
森绘都本屋大赏年度第2作品<三日月>将拍摄日剧，永作博美&高桥一生共演，通过一个家族的50年历史，观察日本补习班的变迁。工藤阿須加、大政絢、壇蜜、黒川芽以、風吹纯加盟，2019年1月NHK放送。
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这小摊是依着自家门口支起来的。
Interception can be done at three levels.
该剧讲述的是林小溪在经历了与三个男子的生死情感后走向人生涅磐与命运重生的过程。
在治疗师办公室的一次偶遇后，一名前海军陆战队士兵和一名家庭主妇发现他们各自的配偶有婚外情，这让两人产生了一种意想不到的联系。
缉毒支队A组组长齐雁南在潜伏打击一个贩卖毒品的犯罪团伙时突生变故。犯罪嫌疑人“黑三”的死无对证也引来检察官林冰铁面无私的调查。同时，为了得到一个价值连城的中医古秘方“谜杀”，各方势力都伸出了黑手，某大金融证劵公司总裁苏金荣就是其一。苏金棠既是贩卖毒品团伙主谋柯世兰的融资渠道，同时也是利益伙伴之一，因而连番出手，暗中动用秘密关系帮助柯世兰脱身。值此风云变幻之际，马局长告诉齐雁南，一个有信仰的公安干警，是要同时具备韧性、抗压性和耐性的。齐雁南和林冰在众人的鼓励和支持下，不畏艰难、不怕牺牲地顶住一切压力，对犯罪份子紧追不舍。最终，在马局长的带领和A组同仁共同努力下，齐雁南洗刷清白并与林冰尽释前嫌，双方携手共济，将那些隐藏的，在逃的罪犯都一一捉拿归案
安欣和汪诚夫妻俩在深圳经营着一家礼品工厂，一家人原本其乐融融。突然有一天接到一笔大订单，却是汪诚前女友杨敏儿设下的圈套，汪诚随即欠下巨大债务，工厂面临破产。为解除危机，夫妻俩想尽办法，却因杨敏儿的步步紧逼，最终陷入绝境。为保护妻儿不受连累及伤害，汪诚无奈之下接受了杨敏儿的建议，办理了假离婚。夫妻俩约定，半年之后努力偿还完债务，一家人就重新团圆。但在杨敏儿的精心破坏下，夫妻俩的复婚之路困难重重。汪诚也在一系列圈套之下，与杨敏儿举行了婚礼。安欣没有被这一系列变故击倒，她努力开创自己的事业，联合了许多和她一样失去婚姻的女人共同创业，开立了美容连锁机构。最终用她的智慧和善良重新赢回了属于自己的爱情，一心想破坏别人家庭的杨敏儿也受到了应有的惩罚。
别人一说到秦朝，我就想到了项少龙……项少龙同学真是为了历史能正确发展操碎了心，鞠躬尽瘁，甚至用自己的所作所为逼使秦始皇焚书坑儒。
20年后欧阳秋的儿子欧阳亦鸣（王关彭饰）已经长大成人，对父亲之死耿耿于怀的他在一个名叫“凶恶类凶杀调查部”的特殊部门担任特别探员，一日黎明城突发离奇碎尸案，欧阳亦鸣（王关彭饰）主动请缨去往父亲客死之地调查此案，然而当案件水落石出时却发现凶手离奇自杀。面对重重疑点欧阳亦鸣（王关彭饰）决定留在黎明城继续调查。欧阳亦鸣（王关彭饰）的留下，仿佛启动了潘多拉魔盒一般，城内又接连的上演“无头骑士案”，“圣洁天使杀人案“等等离奇的凶案，欧阳亦鸣（王关彭饰）在心理学家元风的帮助下发现了所有的这些案件都有一个幕后黑手在操纵，这个神秘凶手通过催眠控制凶手去替自己杀人，而随着欧阳亦鸣（王关彭饰）的抽丝剥茧......
受到歌剧院老板黑泽和马的邀请，金田一、美雪和剑持警部再次造访歌岛。金田一不知为何有种不祥的预感，他的预感果然实现了。和怪人幽灵寄来的预告书一样，在密室状态下的剧场里饰演卡尔罗达的女演员遭到残杀，从此揭开了连续杀人的序幕！
看到这个阵势，韩信就大概猜到了刘邦的来意，心中更是七上八下地忐忑不安，难道自己的运气这样不好。
Each object has its corresponding state, and each state corresponds to some corresponding behaviors. If an object has multiple states, there will be many behaviors. Then the judgment of these states and the behavior completed according to the states will lead to multiple conditional statements, and if a new state is added, the existing code needs to be changed. This kind of design obviously violates the principle of opening and closing, and the state mode is used to solve such problems.
李左车心头又是一震，抬头轻轻地看着韩信，看看这位年轻的元帅到底想要做什么。
But we didn't realize it until the first big mouse emerged from the trench of the position. The big rats under the "earth beam" are only a few that dig shallow holes. Most of the deep digging is simply not visible from the surface, This is what I said just now. If you dig shallow, you can barely hit it. You can't see it deep, There is no way out, At last this thing was dug up and emerged directly from the trench wall. Then don't even shake the soil on your body, Bite at the sight of men, As the number of drillings grows, In the end, there were several times more rats than people in the position. Forming a situation of several besieging a soldier, Seeing the urgency of the situation, But 'the lame man caught up with the uneven road' (this is a folk proverb, meaning to make things worse, the house leaks when it rains at night), The big wasps that were repelled for the first time launched another attack, or from the left and right wings, in your words, this also formed the "open space" to cooperate in the battle. It is very strange that the big wasps did not attack the big rats on the ground at one time, but only stung people. They are obviously "a group" of dogs. Alas, then we will fight too badly. " Zhang Xiaobo said with a long sigh here, and I couldn't help but be surprised. This big mouse can dig out more than 100 meters of passages underground in more than half an hour. How fast is this? That's a speed of more than 30 centimeters per minute. Although it is said that the soil on the southern border is softer and no harder than that in the north, it can dig more than 30 centimeters per minute. This speed is really staggering.
The princess of Shu put down her veil and said coldly, "Do you see clearly?"
头年本就亏饷，如今东南贼寇猖獗，俺答来犯，一切比最初的情况还要困难，朝廷不得不加税赋，广征兵。
