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北方小城南石发生了一件大事，案犯王泉深夜从看守所袭警逃跑，两天后又来到南石大厦安放了烈性炸药，要和市长林志航当面对话，并要引爆炸药，制造惊天大案。NBC宣布一口气续订《#芝加哥警署#ChicagoP.D.》三季。Strategy mode refers to defining a series of algorithms, encapsulating them one by one, separating the unchanged part from the changed part, which is actually separating the use and implementation of the algorithm. The usage of the algorithm is unchanged, and the calculated bonus is obtained according to a certain algorithm, while the implementation of the algorithm corresponds to different performance rules according to performance.Demo Xia + Diao Shen Xia: These two are put together to say, after all, there are 50 steps calling the kettle black, and no one is much better than anyone. Of course, don't belittle yourself. Everyone came from this stage. At this stage, those who are not good at programming will practice programming well, and those who do not understand the principles will read books and understand the principles. Doing it by hand is the first thing, and then constantly changing the parameters of some models, looking at the changes in the effect, then looking at the mathematical derivation behind it, and understanding the reasons, which is much better than looking at the derivation of a lot of mathematical formulas first, and starting to write code in a dizzy way.