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Historically, intelligence gathering has been left to spies who risked their lives to sneak into a building (an organization, an embassy), steal documents, files or hard disks, and then run away. The more hidden these tasks are, the less likely they are to disturb the owners of these target files, and the better. Then, analysts or sometimes decoders decode the information so that military leaders and strategists can improve their attack plans to ensure maximum attack power.(2) The client side initiates a connection request to the server side, and the Reactor listens to the occurrence of the ACCEPT event and sends the ACCEPT event to the corresponding Acceptor processor for processing. The Acceptor processor obtains the connection (SocketChannel) corresponding to this client through the accept () method, and then registers the READ events that the connection is concerned about and the corresponding READ event handler with the Reactor, so that the Reactor will listen for the READ events of the connection. Or when you need to send data to the client, register the WRITE event for the connection and its processor with Reactor.Broadcasting"Mice belong to rodents. It is indeed their natural nature to be good at digging holes and drilling the ground, but how efficient is it to use this skill to avoid fire on the spot?" I still couldn't believe it, so I continued to ask.“潮水死了————”That's called threshold …