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The factory class mode provides a mode to create a single class, while the builder mode is to centralize and manage various products to create composite objects. The so-called composite objects refer to a class with different attributes. In fact, the builder mode is obtained by combining the previous abstract factory mode with the final Test. Let's look at the code:外星王子在返航的途中飞船出故障，掉在一个类似于湖泊的地方。他化名峰泉到海龙的学校做班主任，那个女随从化名世钟，去学校做了校医。期间发生了很多有趣又感人的事情，包括和舞蹈老师的爱情故事，和海龙之间的真挚友谊，和坏人的较量等等。霍元甲进入天津城后，开始接触进步思想，认识到民族存亡是大事，继续惩恶扬善，消灭海匪，挫败日本人的阴谋，整合津门的门派之争，救护抗击八国联军的英雄，打败俄罗斯大力士，成为津门爱国义士的一面旗帜。苦笑的同时，对于随何的唯利是图和凉薄更加清楚地领略了。Different from other malicious data tampering or hijacking attacks, DDoS is simple and crude, and can directly destroy the target. In addition, compared with other attack methods DDoS, the technical requirements and the cost of launching the attack are very low, only some server permissions need to be purchased or a batch of broilers need to be controlled, and the corresponding attack speed is very fast and the attack effect is visible. On the other hand, DDoS is easy to attack and difficult to defend. In order to ensure the needs of normal customers, service providers need to spend a lot of resources to fight against the attack initiator. These characteristics make DDoS a very good sword in the hands of hackers and a thunderbolt.结果，没帮上忙，自己反倒被打下山崖。