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Regular maintenance generally refers to the regular inspection and maintenance of hardware facilities. The range of detection here is as wide as possible. If the range is too large, Depending on asset type and asset range, Sampling tests are conducted, But all machines must be checked once a year, Replace the equipment with unstable performance or failure in time. Attention should be paid to monitoring the hardware equipment here. I have encountered the event of standby server failure for half a month. Let's not talk about it. Finally, maintenance should cover all equipment, regardless of network, security, server, basic power, air conditioning, UPS, etc.Kang Sugong's proud capital is his unique shooting skill in the world. He compares himself with Hou Yi, and he believes that this skill is endowed by heaven and cannot be copied. To put it bluntly, he thinks he is a genius with exotic goods to live in and is firmly in Diaoyutai.Public class Source {慢羊羊为了训练众小羊写好文章,于是想出方法,要众小羊每天写日记。于是,众小羊开始把每天的遭遇、感想都记录在日记中。其中有灰太狼发明了抓羊迷雾,众小羊合作逃生;沸羊羊怕自己的鼻鼾声骚扰众羊的睡眠,于是独自睡到了外面,而且还遇到了同病相怜的灰太狼;暖羊羊千方百计地改变自己的乌鸦嘴;美羊羊为了做好一个蝴蝶结,弄得笑话百出;懒羊羊依旧悠然自得;慢羊羊发明了能吸引小羊看书的立体喷雾,把书中的灰太狼变出来,弄得羊村大混乱等等。羊羊所写的日记,称之为:开心日记。Some software developers always want to set up a certain design pattern when designing programs. In fact, this is wrong and they do not really master the idea of design pattern. In fact, many times readers use a certain design pattern, but they just don't know what the name of this pattern is. Therefore, when designing programs, we should use appropriate design patterns according to our own understanding.