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马丁·贝伦斯为德国联邦情报局工作。一天，他从他的一个联系人那里得到信息，导致无人驾驶飞机对一个被扎希里斯坦政府通缉的恐怖分子发动袭击。几天后，恐怖分子袭击慕尼黑一家餐馆，报复无人机袭击，他的生活迅速失控。马丁试图找出谁是这次袭击的责任人，并了解到答案就在离家不舒服的地方。这不是变相说明自己的掌控能力差？不得民心吗？尹旭心中自嘲一句，说道：怎么说呢？面子这东西是要自己去争取的，尊严也是一样的。B) Design principles. Many people have listed seven principles, such as single duty principle, opening and closing principle, Richter substitution principle, dependence inversion principle, interface isolation principle, composite reuse principle and Dimit principle. LSP, I elevated it to one of the three cornerstones of the object-oriented paradigm; Single responsibility and interface isolation are mainly used as the principle of responsibility division in object-oriented analysis/OOA, which you can not pay much attention to at this time. Relying on the inversion principle, I throw it away as garbage, because the opening and closing principle or directly "relying on abstract type principle" already contains the essence of relying on the inversion principle, while the dross of relying on the inversion principle is inherited by IoC. Of course, the pullback, I emphasize very much. Therefore, you need to master the abstract dependency principle (OCP), one-way dependency principle (including the learning of callbacks) and the minimum dependency principle (composite reuse principle, Dimit rule).7 Visibility is less than 200 meters. When fog lights, dipped beam lights, position lights and front and rear position lights are turned on, the maximum speed is 60 kilometers and the distance from the front car in the same lane is more than 100 meters.