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The propagation of events is directed. When a button is clicked, the event generated starts to propagate upward from the button (just like a blister comes up from the bottom of a cup, which is why it is called event bubbling), but this event always looks for whether a specific attribute has a value. For example, the click event of a button first looks for a meaningful definition of whether there is an onclick attribute on the button (i.e. The attribute points to an existing function or an executable statement), and if so, executes the function or statement; The event then continues to propagate up to the upper layer object of the button (for example, a form object or document object, which in short contains the parent object of the button). If the object also defines the onclick attribute, the value of the attribute is executed.It can perform one task per second, which is very practical in some environments with high real-time requirements.If a malicious request has characteristics, it is very simple to deal with: just intercept it directly.　　故事记述了巴尔的摩警察局枪支追踪特别工作组的起起伏伏，以及一个美国城市所遭遇的腐败和道德沦丧，在这个城市里，禁毒和大规模逮捕的政策是以牺牲实际警 察工作为代价的。事业有成的李自强收到了老村长尚老三的邀请来治理映山村，成为新的村长。自信满满的李自强来到了这个“藏龙卧虎”之地: 白拿贫困补贴死不脱贫赌棍的二柱子， 喜欢偷汉子的张玉兰，酗酒到血栓的奎子， 喜欢占姑娘便宜的李大海， 最后，还有个动不动就要自杀的胃癌患者陈大壮。 敢情是尚老三管不了，才把这个烂摊子交给李自强的。 准备开始做点什么行动吧，陈大壮又开始要自杀了， 好像年轻貌美的小秘书杨洋还对李自强抛媚眼 ？My wife's quick take-off + strong attack on empty mother likes it very much.讲述了元气少女的 “粉丝女主”和高冷学霸的“爱豆男主”成为同桌， 女主“粉丝”属性给男主造成了一系列的困扰。