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从估值5千万到一无所有 90后的他感觉梦境一场 - 资讯 - 清泛网 - 专注C/C++...

...O2O现在还没到风口。宠物行业的根本不在这里,这是源头问题。”与此同时,他对爱狗团的方向也进行了调整。夏军原本做的是宠物O2O,类似于美团的团购模式,将买家导入到线下的商户。而他放弃了O2O做法,现在做的模式不像...
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搭建高可用mongodb集群(四)—— 分片 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术

...可用mongodb集群(三)—— 深入副本集》搭建后还有两个问题没有解决:从节点每个上面的数据都是对数据库全量拷贝, 按照上一节中《搭建高可用mongodb集群(三)—— 深入副本集》搭建后还有两个问题没有解决: 从节点...
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Lua简明教程 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...浮点数会慢(除非大于100,000,000,000,000),或是会有精度问题。 你可以以如下的方式表示数字,0x开头的16进制和C是很像的。 1 2 3 4 5 6 7 num = 1024 num = 3.0 num = 3.1416 num = 314.16e-2 num = 0.31416E1 num = ...
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Can I use a hash sign (#) for commenting in PHP?

I have never, ever, seen a PHP file using hashes ( # ) for commenting. But today I realized that I actually can! I'm assuming there's a reason why everybody uses // instead though, so here I am. ...
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如何高效的学习掌握新技术 - 杂谈 - 清泛网 - 专注C/C++及内核技术

...当于又打开了一扇新的大门,可以从更宽广的角度来看待问题。 从心理学的角度来说,我们对于外部世界的认识可分为三个区域:舒适区,学习区,和恐慌区。我们所熟悉的技术领域就是舒适区,而新技术是处于学习区或恐慌...
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PHP UML Generator [closed]

How do I generate UML diagram based on existing classes in PHP? 11 Answers 11 ...
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relative path in require_once doesn't work

... this should fix your problem. So: require_once(__DIR__.'/../class/user.php'); This will prevent cases where you can run a PHP script from a different folder and therefore the relatives paths will not work. Edit: slash problem fixed ...
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Problems with lib-icu dependency when installing Symfony 2.3.x via Composer

... update your php-intl extension, that's where the icu error comes from! sudo aptitude install php5-intl // i.e. ubuntu brew install icu4c // osx check the extension is enabled and properly c...
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Where does PHP store the error log? (php5, apache, fastcgi, cpanel)

I am on shared hosting and have Cpanel, Apache, PHP is run by fastcgi. Where does PHP store the error log? 21 Answers ...
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如何建立一套适合自己的高胜算交易系统 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...人若想在效率市场持续稳定的赢利,必须成功的解决两大问题:1、如何在高度随机的价格波动中寻找非随机的部分;2、如何有效的控制自身的心理弱点,使之不致影响自己的理性决策。很多投资家的实践都证明,交易系统在上...