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However, the sharp increase in express delivery has produced a large number of discarded packages, which is not a unique phenomenon in China. How do other countries solve the problems brought about by these discarded express packages? Li Li told reporters: "Germany promulgated the Packaging Waste Management Law in 1991, so Japan also has a special Packaging Waste Recycling Law, which stipulates that different packaging wastes should be recycled separately."PS: In fact, I have seen all the design patterns a long time ago. However, I didn't write a blog, but I soon forgot it and didn't play any role. This time I summed it up in the form of a blog, and found that the effect was still obvious, because through this way of summarizing, I understood it more deeply, remembered it more firmly, and affected my thinking of realizing functions at ordinary times. Therefore, I encourage everyone to sort out what they have learned by taking notes, so that I believe they can understand it more deeply and better. I will write it down all the time and then plan to write a series of WCF articles.1. Creator: FactoryPizzaStore as defined above. It is an abstract class, which defines the method of creating objects. This method is an abstract method, and the specific process of creating objects is implemented by its subclasses. This abstract class usually relies on an abstract Product (another role in the factory method pattern) class. These abstract products are made by subclasses, and the creators do not care what kind of products are made.《拜见岳父大人3》美国版的贺岁片。和之前的《岳父》系列一样，影片是一部充满轻松幽默温情色彩很弄的家庭轻喜剧片，由德尼罗与本·斯蒂勒主演，另外在《岳3》中还会有新面孔客串，像欧文·威尔逊、达斯汀·霍夫曼、芭芭拉·史翠珊、杰西卡·阿尔芭等将悉数亮相。/sigh (sigh)This.receiver = receiver;Milliseconds, zero-filled 3-bit display, 000-999