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张居正便在此列，无论是谁，不用说话，不用试探，只看他一眼就可以肯定，这必须是一个聪明人，聪明人就该是这样的。50-70Extraction structure or pattern: It is often necessary to store the knowledge, extraction structure or pattern in the professional field in a better way. For example, expert developers make good use of design patterns.　　阿磊在网络上以虚拟的身份结识了同样喜欢五月天的瑄瑄（刘亦菲 饰），瑄瑄是哈尔滨京剧团的学生，她趁着随团到台北表演的机会偷偷到了三义。The following procedure is to use the state mode to improve the light. When it comes to encapsulation, the behavior of the encapsulated object is generally preferred over the state of the object. But the opposite is true in state mode, The key to the state mode is to encapsulate each state of the thing into a separate class, and the behaviors related to this state are encapsulated inside this class, so when button is pressed, only the request needs to be delegated to the current state object in the context, and the state object will be responsible for rendering its own behaviors. At the same time, the state switching rules can be distributed in the state classes in advance, thus effectively eliminating a large number of conditional branch statements that originally existed.