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Generally speaking, a delegate is a class that maintains a field inside and points to a method. Events can be regarded as variables of one delegate type, and multiple delegates or methods are cancelled through event registration. This article uses delegate and event execution methods to understand the difference between the two.汉武帝刘彻，少年登基，胸怀大志，他改变文景以来“黄老之学”的无为而治，自号“武帝”。并下旨求贤，破格用真才实学的人才。山东奇人东方朔，精通文史，奇智多谋，应召而来，毛遂自荐。他献上的两车竹简兼论文武，提出治国、外交、安边等完整建议，使汉武帝刮目相看。然而，东方朔却始终不见被大用。汉武帝对他似乎视若不见。既不提拔，也不放他外任。只是把他留在自己身边，朝夕相见。东方朔壮志难酬，长才难展，又百思不得其解。故意以滑稽风趣讥评朝政，不昔触犯武帝逆鳞。武帝个性刚强，御下甚严，但对东方朔却偏偏网开一面，一笑置之。这一对君臣就在这种奇妙的关系中，相处了十几年。安琪媛出生在一个平凡的大家庭里，因为母亲去世的早，父亲安向东带着她同姥爷梁永顺和姥姥潘素芬生活在一起。姥爷梁永顺和姥姥潘素芬坚守着一家祖传的面条老作坊，除了大女婿安向东偶尔帮衬着老两口打理这间老作坊，其他子女都在外工作，对老作坊的手艺和生意丝毫不感兴趣。安琪媛个性乖巧懂事，但她一直不被财大气粗的婆婆林秀琴接受，她与丈夫林天佑的婚姻也被婆婆林秀琴不断破坏。安琪媛在一系列误打误撞中与大财团董事长之子齐霁结识，并屡屡得到齐霁的帮助。然而齐霁的善良也被安琪媛的婆婆林秀琴利用，让林天佑陷入对妻子安琪媛的种种误会中，两人的婚姻濒临破裂。传承三代的梁家食品老作坊濒临倒闭，年迈力衰的梁永顺和老伴潘素芬为劝说儿女们回来继承家业，无奈生出一计，称有巨额家产。所有儿女果然纷纷归来。讲述和影星李英爱的表面有着180度不一样的－李英爱小姐，其家庭、爱情和职场上所发生的故事。此剧为韩国最长命的喜剧。ABC正式宣布续订《灵书妙探》第八季。香儿欣喜地站起身，道：我们寨子有三十多人。DDOS attacks mainly occur in the network layer. Its most obvious characteristic is to send a large number of attack packets, consume network bandwidth resources and affect normal users' access. At present, the detection and defense technology for DDOS attacks in the network layer is quite mature, and at the same time, some new attack methods-DDOS attacks in the application layer have emerged. Different from network layer DDOS attacks, application layer DDOS attacks mostly imitate the access behavior of legitimate users and will not generate a large number of attack data packets during data transmission, but they will consume server resources through a large number of database queries and other operations, which is more difficult to detect. According to the different attack modes, DDOS attacks include reflection amplification attacks in addition to ordinary flooding attacks. This type of attack often uses a legitimate server as a reflector, which sends a large number of data packets to the target, thus causing greater harm. At present, DDOS attacks against DNS servers are also common. Attackers often send fake domain names to DNS servers, consuming DNS server resources. At the same time, due to the recursive query mechanism in DNS servers, DDOS attacks against DNS servers have a large impact range.