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-_* q2 n: T $jFranklin's way of improving his writing is much more complicated than the deliberate practice of learning English.Moreover, as can be seen from the counter of the second rule in the above figure, no message has been matched by the second rule at all.Factory Pattern: Factory Pattern is a frequently used pattern. Classes implemented according to Factory Pattern can generate instances of one of a group of classes according to the provided data. Usually, this group of classes has a common abstract parent class and implements the same methods, but these methods perform different operations for different data. First of all, we need to define a base class. Subclasses of this class implement methods in the base class through different methods. Then you need to define a factory class that can generate different subclass instances according to conditions. After getting an instance of a subclass, developers can call methods in the base class regardless of which subclass instance is returned.Attackers can use dig query and EDNS0 to carry out efficient DNS amplification attacks. Attackers want the widely existing open DNS parser to send dig query commands, set the udp message size in the opt rr field to a large value, and make the requested source ip address not the target ip address.电视剧《暗行者》是一部反特、抗日、悬疑题材！也是大陆著名小说家“蓝晶”的新作，该小说题材与电视剧不同，是一本网络玄幻题材，作家蓝晶，70年代生人，双鱼座。本名胡剑鸥，长住上海。网络知名玄幻作家，目前华语文化圈中最具人气的奇幻小说家之一。