Visitor mode: Pay attention to the change of encapsulation object operation, support adding new operations to the class structure at runtime, and define new operations on these class instances without changing various types in the class hierarchy.
玉米大声道：大人，学生有话说。
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 responsibility chain pattern describes how requests are passed along a chain of objects. It forms objects into a chain, and the sender sends the request to the first receiver of the chain and passes it along the chain until there is an object to process it or until there is no object to process and it remains at the end of the chain.
肃王直觉不妙，所以当皇帝派人来传时。
As a new salesman, don't rush out to find customers. First of all, it is also the most basic thing to have a comprehensive understanding of the attributes of the products to be promoted, and to have an understanding of any aspect and information about the products. At the same time, we should have a familiar process with the company's work flow and understand the company's sales and operation system. Only by mastering these can we well introduce the company's products to our customers, and only when we encounter relevant problems in the marketing process can we know how to solve them, so as not to be in a hurry and affect our customers' confidence in the company. Therefore, sharpening knives does not miss woodcutters, and when they are fully prepared to find customers, the results will definitely be different.
一对恩爱夫妻，依然是小人物，也依然有没完没了的争吵。看到邻居买车后，丈夫杨立新的心理失去了平衡，借钱也买了一辆车，于是争吵开始了，并且逐渐白热化，丈夫说妻子是一脸摺子的黄脸婆，妻子说丈夫管人家借钱买车不要脸，结果可想而知妻子离家出走……
十五年前，鹿家姐妹在家中目睹父亲被人所害，幸及时躲起免于一难。父亲的死被合伙人赵文东伪装成自杀，公司也落入他手中。两姐妹誓要查明真相，为父伸张。不想让妹妹鹿汐有危险，姐详细
Oranchun爱上了Jitta，但他已经和Mesa结了婚。于是两个相爱的人只能分离，而Jitta此时已经怀孕，并为Oranchun生了一个女儿……
怪物是独特、可爱而又善良的。有一天，他遇见了一位年轻女性，这让怪物很苦恼。他不想面对人类，因为他知道自己这副模样绝不可能被接纳。但是，他又想面对人类，跟人类说话，一起欢笑。接着，怪物对人类产生了爱慕。然而这是一份无法实现的感情。因为怪物的体内隐藏着秘密，他不能接触人类。可悲的怪物无法抑制地思慕着人类，毫无保留地爱着人类。而人们也因此受到命运的捉弄，内心动摇却坚强生活着。
贞淑（韩智慧 饰）还没出生前爷爷就和望族宗孙赫俊（李东健 饰）订了娃娃亲，随后贞淑家慢慢衰落，剩下贞淑与妈妈相依为命。一晃眼十多年过去了，赫俊成了英俊潇洒的检察官，而贞淑则上高三了。一天晚上，贞淑和几个死党泡吧时被检察官赫俊发现，几人被他狠狠训了一顿，因为未成年人不准进入这类娱乐场所。几日后，贞淑和赫俊在大人的安排下相了亲，这时两人才发现原来对方就是自己的对象。尽管双方都对对方不满意，但赫俊为了实践爷爷的承诺，和贞淑订下了契约，两人婚后各走各路、互不相干。
程胜（周星驰饰）乃一游手好闲之徒，终日坑蒙拐骗，无恶不作。一日装瞎子行骗，遇遇女骗子（毛舜筠饰）被追债的贵利王打手排骨（元奎饰）欺负，胜一时看不过眼出手相救，不料却被债务转嫁弄了自己一屁股债。另一方面。老江湖凌万蜂（午马饰）同样欠下了贵利王（张耀扬饰）的债务，无力还清。他想办法找到自己的旧情人萍姐（恬妞饰）和妓女APPLE（叶子媚饰）合谋冒充一富户人家向一阔少诈骗。不料被骗的阔少正是胜所扮，他也想骗这一富户。阴差阳错的骗局，笑料百出...
众人听了都偷笑。
King bonus
因为家庭变故而被迫接手青山滑雪场的沈默，一心想要将雪场以合理的价格出售，奈何死对头白振业从中作梗，正当沈默为此事烦躁不已之时，好管闲事的雪场员工米粒，莽撞的来到沈默面前，说出自己对雪场的宏图大志，希望雪场不要在冬季出售让员工们失业。米粒的冒失惹来了沈默的针对，本以为米粒会就此求饶，不想积极乐观的米粒不仅抵抗住了沈默的所有大招，还凭借机智帮沈默化解了一次又一次的雪场危机，同时也在不知不觉中改变了沈默闲事不理的孤僻性格。相处的增多逐渐让沈默对米粒有了新的了解，正当沈默准备与米粒有新的进展时，好友方鸿浩与米粒之间看似暧昧的关系令沈默产生了误会，加上隔三差五就要耍赖表白的白安卉，沈默头疼不已。
有种你把小爷弄死，老子才佩服你。
Q: What kind of Kaggle competition do you like best? Why?
