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他和黄豆身在官场，考虑得比旁人更多一些。Singleton mode refers to ensuring that there is only one instance of a class and providing a global access point. It solves the problem of the number of entity objects, while other builder modes all solve the coupling problem brought by new. The main points of its implementation include:P. Interactive ()11. At this time, the plot is basically over, and you can start fighting for the old one (but don't start fighting for a while). In order to achieve success, you still have to kill 3 firearms divisions. There is no fixed sequence for these three, and the main test is the mountain jumping technique. Selective kill the word dot with "fire" in the picture.Strategy mode: Pay attention to the encapsulation algorithm, support the change of algorithm, and replace the algorithm independently of the customer at any time by encapsulating a series of algorithms.急忙道：敬文，别出来了。