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Delicate mind:The code for creating the object is encapsulated and the specific factory class is instantiated, thus achieving the purpose of encapsulation and instantiation. Encapsulating the code that creates the object in one place can also achieve the purpose of reuse and is more convenient for later maintenance. This also means that when the customer instantiates the object, he will only rely on the interface and not on the specific implementation. Help us to better achieve interface programming rather than implementation, making the code more flexible to cope with future extensions.First of all, let's talk about the skills of Blood River in detail:要你管。What is called here is the event pool mentioned at the beginning. First, see if there are any event objects that can be reused. If not, instance one again.莫说嬴子夜年纪小不知晓，同为公主，更是害怕再出现此等局面，同时还担心会有流言蜚语，故而此事只有极少数人知晓。