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1. The sender knows the first receiver in the chain and sends the request to this receiver.If I were to implement a pizza ordering system, I would definitely write the code like this, because this kind of code can be written subconsciously without consuming our brains. However, take a closer look at this code: the purpose of this method is to order pizza. However, the code for ordering pizza also needs knowledge about the production of pizza. This method must know all pizza. Worse still, if the types of pizza are to be expanded or pizza with poor sales volume are to be deleted in the future, then the code for ordering pizza will be modified. It looks very bad and should be revised. Our first step must be to separate the code for producing Pizza from the code for ordering pizza, because you should not let the code for ordering Pizza know the logic for producing pizza, but should hand over the logic for producing Pizza to a special type. In this way, we can cope with future changes-if we want to add or delete pizza, we can directly modify the producer of pizza without affecting the logic of ordering pizza.In recent years, the appearance of female journalists has become more and more fashionable, and they are more and more like female stars from makeup to manners.韩平、叶红、文安三位刚刚步入社会生活的都市女性的事业、爱情、身世之谜诸方面的矛盾纠葛为主线，心充满机遇而又潜伏风险的现代都市生活为背景，反映她们的奋斗与失落、欢乐与感情，借以勾勒当代女性全新的生活理念与追求，在他们不同命运的轨迹中，伴随着各色各样的人物的渐次登场，展示了一幅幅色彩斑斓的当代都市生活的图景。同时，也表现了这种生活的丰富以及当代女性复杂的精神世界。映画版「覚悟はいいかそこの女子。」は、10月12日から全国公開。ドラマ版は、MBSで6月24日から毎週日曜深夜0時50分、TBSで6月26日より毎週火曜深夜1時28分に放送スタート。初回のみ、MBSが深夜2時10分、TBSが深夜1時35分に放送が始まる。天启写出《第一次亲密接触》，引爆整个网络，然后写出《诛仙》、《重生传说》、《寻秦记》，让网络小说大放光彩。《造梦者》通过主人公鹏飞的创业史，交织了个人的初心理想、对正义地坚守与社会利益冲突时的抉择。其中支线还包括了儿子对父亲的不理解，年轻人面对创业时由盲目到成熟的过程等。《造梦者》更是一部年轻人的创业榜样史，也在向社会传达正确的价值观，即成功可以不通过悖逆道德和对利益的一味追逐来实现，而是通过服务奉献社会的能力和价值来获得的。在追逐自己理想的过程中，鹏飞遇到了种种诱惑，其中最主要的冲突就是创业中利益与正义初心产生矛盾时，年轻人该如何抉择。幸而鹏飞选择了坚守初心，尽管创业之路颇费周折，经历了不被家人理解以及破产撤资等众多挫折，但他始终能坚持自己最初的理想，最终能够克服各种困难，并取得了瞩目的成功。