Delegate: Translated as delegate, the main semantics are: an object itself does not know how to handle a thing (or a request), and the object gives the request to other objects to do.
《神奇的汉字》是湖南卫视2019年全新推出的全民8秒汉字比拼节目，旨在通过轻松的汉字游戏和详细生动的汉字讲解，深入浅出地传递中国汉字文化，通过对汉字追本溯源、研究汉字的字形、字义、字音、字源，让学生群体和年轻人更加了解凝聚着中国文化精魂的一笔一划，以汉字为桥，走进中华文化宝库，传递积极向上的正能量。
曼彻斯特被搬到了风城芝加哥，在经济萧条的大背景下，一个工人阶级的家庭，一个经常被发现睡在客厅地板上的酒鬼一家之主，一个不称职的老妈，他们的女儿，18岁的菲奥纳承担下了抚养他5个弟弟妹妹责任，这对她来讲似乎是个不可能完成的任务。热闹非凡的家庭日常生活夹杂着爱情，冒险，欺诈 ，温情等等有血有泪的故事，为我们展现了这个非凡的家庭……
SYN flooding attacks can attack with fewer packets than ordinary brute-force DoS attacks that only send a large number of packets to the target network. However, this requires some understanding of the server's operating system, such as how much backlog queue space it allocates and how long it will keep the TCB in the SYN-RECIEVED state before timeout and discarding the TCB. For example, an attacker can send a certain number of SYN packets that are exactly the size of the backlog queue, and their cycles are just the time when the TCB is recycled, thus making the server permanently unavailable.
本剧根据真实故事改编，是一部快节奏的、惊险刺激的悬疑剧集。该剧由黄金编剧组合Alex Kurtzman、Bob Orci联合Nick Santora、Justin Lin开发，Justin Lin担任导演。故事描述高深莫测的计算机专家Walter O’Brien（Elyes Gabel）和一群同样具备天才头脑的国际计算机黑客共同组建全球防御网络，抵抗复杂的现代高科技威胁。
本剧讲述了所有人都想走考上大学这条路,即使不是大学也要寻找自己的梦想的特性化高中的孩子们的故事。
俞大猷粗中有细，对于之前毛海峰的话耿耿于怀：总督……不会为了讨好汪直，真的把杨参议的家人……卖了吧？……你比我精明，你倒是说说啊。
, lobster habits. Lobster belongs to insect shell animals, similar to crabs, with a pair of specially developed chelates and the habit of digging caves. Generally, lobsters dig caves near the water's edge. Lobsters like shade and fear light. When the light is weak or dark, they climb out of the cave. When the light is strong, they sink to the bottom or hide in the cave. Lobsters have spawning periods twice a year in spring and autumn. A pair of male and female lobsters can breed up to 480 shrimp seedlings at a time. Usually, the lobsters listed in early spring are the shrimp larvae bred in the autumn of last year, while the shrimp larvae bred in spring only need to be bred for more than 60 days to be listed. Lobster farmers only need to keep the large whole lobster for planting in the first year. In autumn, the lobster will go into the cave to give birth. In the second year, they do not need to buy too many lobster seedlings. 2. Big appetite and miscellaneous eating habits. Lobster has a very good appetite and can be fed with animal and plant feed, such as miscellaneous fish, miscellaneous meat, wheat, corn and other wild omnivores. 3, not afraid of dirty and smelly water, afraid of chemicals. Lobster is not afraid of dirty and smelly water, but it is very sensitive to chemicals such as pesticides, fertilizers and liquefied petroleum gas. As long as there are these chemicals in the pond, the lobster will be destroyed. Second, lobster breeding technology 1, to create a good lobster growth environment. Lobsters like to make holes. Generally, the depth of caves is 50-80cm, and the depth of some caves is more than 1m. In order to avoid escaping from the holes, the width of the ridges around the aquaculture water body should be more than 1.5 m, and 0.5 m high anti-escape nets or smooth anti-escape walls and anti-escape boards should be set up around the ridges. The anti-escape boards and fences should also be buried 2m deep to prevent lobsters from escaping. At the same time, the river pond simulates the ecological environment of lobster under natural conditions.
London Taxi Driver's Brain//049
If we need to do something later, we also need to write the called method in it. In this way, the code is highly coupled, so we now use the publish-subscribe mode to see how to refactor the above business requirements code.
张家平反，无人反对。
Episode 34
1938年10月武汉弃守后，中国抗战进入相持阶段，“文夕大火”却把即将成为抗日前线的长沙付之一炬。铁血将军薛岳临危受命，赴任第九战区代司令长官；他曾经的对手——八路军驻湘通讯处彭中华，则奉中共中央之命，主动上门献计献策，与薛岳并肩尽抗敌守土之责。经历悲壮惨烈的恶战，薛岳终于在中国共产党和湖湘群众的密切配合与支持下，指挥三湘虎将先后逐退了冈村宁次、阿南惟畿对长沙的三次进攻。而像李本忠这样身不由己加入到抗战洪流中的小人物，亦在艰苦奋战的洗礼中逐渐成长为一位智勇双全的铁血战士。当第三次长沙会战结束，抗战还任重道远，但中国人民已经用铁的事实证明了毛泽东《论持久战》中的论断：“坚持抗战，坚持统一战线，最后的胜利必然属于中国！”
24岁的陈美如是一名网络信息监察员，性情孤僻古怪。生日那天，她唯一的死党姜蕙真为她大肆张罗本命年派对，当晚她被一个古巴比伦扮相的男人缠住——他自称王子，为爱她而生。陈美如以为是个恶作剧，直到“王子”说出自己的名字......
黑云压城城欲摧，所有超级不良少女都被卷入这一连串的纷争漩涡之中，敦子她们的明天将会如何？
我的杀意恋爱了番外 故事讲述正篇没有描写的柊（中川大志）、美月（新木优子）、流星（铃木伸之）等登场人物过去的连锁故事。
2. Specific practices
圣诞节后，罗恩度过了一个并不愉快但却十分新奇的生日。这时，伏地魔出现了，这次他竟然杀死了海格的宠物阿拉格格，小伙伴们为这只蜘蛛举办了盛大的葬礼。
Q: How do you determine the cross-validation method and the final submission model?
