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After understanding the history and classification of design patterns, how should we learn design patterns? Before learning the design pattern, readers must establish a kind of consciousness, that is, the design pattern is not only a method and technology, but also an idea and a methodology. It has nothing to do with the specific language. The main purpose of learning design patterns is to establish object-oriented ideas, program to the interface as much as possible, with low coupling and high cohesion, so that the programs you design can be reused as much as possible. "Specious. Learning design patterns can better understand object-oriented ideas. Design patterns are some design skills and tricks. Don't rise to ideas and methodologies, okay?"该剧被称作希区柯克电影《惊魂记》（Psycho）的前传。作为中国最长寿的一部农村题材电视剧，《乡村爱情进行曲》是《乡村爱情》系列的第九部作品。这一部里，象牙山村将迎来新的改变。故事围绕新角色“第一书记”的登场展开，他的到来和其实施的新举措给村里造成了一系列的影响。赵四忽悠宋晓峰争当村主任，刘能与时俱进做起了电商，而大脚则会有新的感情故事，处处充满了正能量。据悉，本部内容还有一个神秘的惊喜，值得观众期待。《天亮请睁眼》的故事发生在当今和平时期，故事围绕年轻女警官唐艾嘉展开。唐艾嘉与同在技术中队的刑警李坤订婚不久，一个棘手的贩毒案件却浮出水面。在使命、亲情、爱情的多重压力下，这对肩负使命的缉毒刑警情侣开始艰难的抓捕毒枭之旅。一群以智谋掩藏肮脏的毒贩，一段铭心刻骨不离不弃的爱情，一场裹挟着阴谋、计略、暗战的殊死博弈。面对正与邪，情与法的较量，一个撼人心魄的故事拉开帷幕。两人亦在一明一暗，亦敌亦友中，一个个线索、证据渐现，调查渐入佳境。随着故事的进展，唐艾嘉意外遇见了自己失踪多年的初恋，隐藏在初恋背后的犯罪集团及唐艾嘉的身世之谜，将故事推向了高潮。肩负使命，唐艾嘉智斗毒贩，将罪犯抓捕归案。一场情与法、正与邪的较量落下帷幕。讲述一个“高富帅”穿越千年后虎落平阳而后东山再起的传奇故事。全剧由两获“中国文艺星光奖”的原央视系列喜剧总导演张凯亲自操刀编剧并执导，众多实力与颜值并重的人气演员倾力出演。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.7. Except for ships engaged in diving operations, ships less than 12m in length are not required to display the lights and types required by this regulation.