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Not long after entering the mountain, he found the target and caught the spy. This matter won him a medal.The hotel is close to Yalong Bay, with a first-line sea view. It is very convenient to go to the sea!For interface programming, a lot of changes that may occur in the system in the future can be isolated. Why? If the code is written for an interface, he can implement the interface with any new class through polymorphism. However, when the code uses a large number of specific classes, once new specific classes are added, the code must be changed. Violating the opening and closing principle.If you are smart enough, you will certainly think of this. To snatch the competitors' customers not only develops the customers of their own products, but also hits the sales of competitors. Such sales are perfect. Competitors' customers already have a more familiar understanding of similar products and are relatively easy to market. When robbing customers, we must pay attention to the fact that we should use legal and compliant methods to find customers reasonably.1侠客文化，陈启暂时拿他们没有办法，但是《笑傲江湖》电视剧马上就要对上《铁血丹心》了，陈启会让他们知道后果的。Seven fairies