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⑥ Initiation Dispatcher will call back the handle_event (type) callback method of the event handler to perform application-specific functions (functions written by developers themselves), thus corresponding to this event. The type of event that occurs can be used as a parameter of the method and internally by the method to perform additional service-specific separation and distribution.The third is to use the design pattern flexibly. Even if you don't need any specific pattern, you can design high-quality codes. No sword is better than a sword.Finally, I quote Leo: 70% of SOC construction and operation will be stuck.不少很有天分的作者，就是因为害怕风险，写了一两部小说后，就纷纷退出网文圈，去做自己不喜欢，但是很有保障的工作。"Grandma didn't say? Your father and mother are our heroes. They cannot come back to spend Christmas with Charlie until they are on a mission to defend the earth."今夜...轮到谁？友情提示：小盆友请在怪蜀黍陪同下观看！