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等他念完前面的嫁妆，张继明立即回身。Finally, let's do some testing work:If I were to implement a pizza ordering system, I would definitely write the code like this, because this kind of code can be written subconsciously without consuming our brains. However, take a closer look at this code: the purpose of this method is to order pizza. However, the code for ordering pizza also needs knowledge about the production of pizza. This method must know all pizza. Worse still, if the types of pizza are to be expanded or pizza with poor sales volume are to be deleted in the future, then the code for ordering pizza will be modified. It looks very bad and should be revised. Our first step must be to separate the code for producing Pizza from the code for ordering pizza, because you should not let the code for ordering Pizza know the logic for producing pizza, but should hand over the logic for producing Pizza to a special type. In this way, we can cope with future changes-if we want to add or delete pizza, we can directly modify the producer of pizza without affecting the logic of ordering pizza.一伙书呆子大学男生发现他们在与同龄女生交往中存在障碍，却意外的发现与年纪大的性感女人谈得很投机，而且相对于同龄女性，他们也更喜欢和父辈女性搞暧昧关系。精明冷静的首领达奇（礒部勉 配音），个性刚强的双抢手薇拉（丰口惠美 配音），开朗淡泊的机械师本尼（平田广明 配音），在这些神秘人物的围绕下，洛克逐渐找到了同伴的感觉，同时，一条充满了危机与冒险的道路也在他的面前展开了。Note: Firewall is used by default in centos7. If you want to save the rules with the above command, you need to install iptables-services. Please review the above for the specific configuration process.