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狼兵在眼皮底下抢劫不管？还如何平倭？李天宠头也不抬，实在是没精力跟这位爷废话了：张总督有令，狼兵补给战后会补偿。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.Left Aileron Left Arrow Left Arrow-6. Channel change signal: the right arm extends horizontally forward, the palm is left, and the right arm swings horizontally to the left;《万能管家》 （ Jeeves and Wooster ）是 Hugh Laurie 大叔和 Stephen Fry大叔在二十世纪九十年代的作品。? Generally speaking, the factory mode is suitable: whenever a large number of products need to be created and have a common interface, they can be created through the factory method mode. Of the above three modes, the first cannot create the object correctly if the incoming string is wrong, and the third does not need to instantiate the chemical factory class compared with the second, so in most cases, we will choose the third-static factory method mode. ?