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Explain that in the OrderPizza method, we do a lot of things, including calling the CreatePizza method to generate a desired pizza, and then doing a series of operations on the pizza. The key point is that Pizza is defined as an abstract class, which means that in the OrderPizza method we don't care what type this Pizza is at runtime, in other words, this is decoupling. The coupling between PizzaStore and Pizza is uncoupled.If you meet MM in the morning, you should say good morning; If you meet MM in the evening, you should say good evening. When I meet MM wearing a new dress, I want to say that your clothes are so beautiful. When I meet MM's new hairstyle, I want to say that your hair is so beautiful.爱与遗憾的套路，但是又包含笑中带泪，很治愈。时尚编辑蔡琬真（张钧甯 饰） 和男友沈浩介（何润东 饰）同居已久，琬真是一个永远把工作放在第一位的职场女强人，而男友浩介却是注重生活品质的SOHO一族，对女友呵护有加，帮她打理着生活的一切。突然有一天，爱犬里拉闯入他们的生活，这个可爱的小家伙也让琬真和浩介原本归于平淡的同居生活有了新的甜蜜。但是琬真的工作越来越忙，她无暇顾及浩介和里拉，感情危机不断升级，直至分手。琬真的工作即将走向新的高峰，高富帅同事也开始了对琬真的猛烈追求，而就在此时，爱犬里拉的生命却走向了倒计时……琬真的生活将发生怎样的改变，她的爱情又将何去何从……富家子高原与大学生李锦文的恋情受到高父极力阻止，因高父知道李母曾开酒馆，认为双方家世悬殊，不能婚配。高原与锦文不顾一切，私奔到乡间结婚，二人勤劳工作，高原且半工读完成大学课程，但好景不常，高原患上脑瘤，变成失明，锦文多方奔走筹钱给他动手术。? -Also on Industrial Internet, Industrial 4.0 and Made in China 2025