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Purpose of Unions in C and C++

... @CiroSantilli新疆改造中心六四事件法轮功 A part of an example from C++ Primer, might help. wandbox.org/permlink/cFSrXyG02vOSdBk2 – Rick Sep 29 '18 at 11:42 ...
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创业 比“直男癌”更可怕的是“技术癌” - 资讯 - 清泛网 - 专注C/C++及内核技术

...子,2006年的时候我看到过一个项目:当时频频爆出食品安全事故(现在似乎也没有好多少),有人就结合当时方兴未艾的RFID技术做了一整套的生猪养殖过程监控系统。他们的解决方案是这样的:给每一头猪都打上一个RFID耳标,而...
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SQL Server: Get data for only the past year

...nction : DATEADD (*datepart* , *number* , *date* ) datepart can be: yy, qq, mm, dy, dd, wk, dw, hh, mi, ss, ms number is an expression that can be resolved to an int that is added to a datepart of date date is an expression that can be resolved to a time, date, smalldatetime, datetime, datetime...
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廉价共享存储解决方案2-drbd+cman+gfs2 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...clean all&yum makecache 3、安装DRBD 请参考 http://user.qzone.qq.com/58740020/blog/1448855653 3.1、不一样的地方 同步以上操作或文件,并初始化资源及启动服务 drbdadm create-md r0 service drbd start 此处只能提升一个节点为主资源 drbdadm primar...
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MySQL主从服务器数据一致性的核对与修复 - 数据库(内核) - 清泛网 - 专注C/...

...令的时候直接键入了密码等敏感信息,这在很多时候是不安全的,比如说别人可以通过查看命令历史拿到密码。还好我们有「ask-pass」选项可以解决此类问题,实际上我们还可以更进一步,直接把密码等敏感信息保存到配置文件...
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How to delete every other line in Vim?

...art in command mode. Go to the beginning of the file by pressing gg. Press qq. Click arrow down and press dd after. Press q. Press 10000@q PS: To go to command mode just press Escape a couple of times. share | ...
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技术人员如何创业《三》- 合伙人的分工 - 资讯 - 清泛网 - 专注C/C++及内核技术

...重要的。站外的销售操作也是越早做越好,包括熟人群、qq群、邮件群、seo、sem、微博、微信等等。通过关系网把自己的产品推销出去,适当做些营销造势增加曝光度,树立行业领先地位品牌。而销售型的ceo可能模式就有点不同...
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While loop to test if a file exists in bash

...an do this: file=/tmp/list.txt while [ ! -f "$file" ] do inotifywait -qqt 2 -e create -e moved_to "$(dirname $file)" done This reduces the delay introduced by sleep while still polling every "x" seconds. You can add more events if you anticipate that they are needed. ...
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正则表达式 30 分钟入门教程 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...输入的内容时非常有用,比如一个网站如果要求你填写的QQ号必须为5位到12位数字时,可以使用:^\d{5,12}$。 这里的{5,12}和前面介绍过的{2}是类似的,只不过{2}匹配只能不多不少重复2次,{5,12}则是重复的次数不能少于5次,不能...
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Jackson overcoming underscores in favor of camel-case

... one qq: when i use snake_case naming strategy will the json files with underscores be deserialized to camel case? – Ram Patra Aug 5 '16 at 23:28 ...