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9个常用iptables配置实例 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...命令清除旧规则: iptables -F (or iptables --flush) 2.设置chain策略 对于filter table,默认的chain策略为ACCEPT,我们可以通过以下命令修改chain的策略: iptables -P INPUT DROP iptables -P FORWARD DROP iptables -P OUTPUT DROP 以上命令配置将接收...
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When should you use a class vs a struct in C++?

In what scenarios is it better to use a struct vs a class in C++? 25 Answers 25 ...
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Read file line by line using ifstream in C++

The contents of file.txt are: 8 Answers 8 ...
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Error installing mysql2: Failed to build gem native extension

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提升大数据分析思想,拥抱大数据未来 - 资讯 - 清泛网 - 专注C/C++及内核技术

...人甚至认为,科技很快就能让大数据分析变得“像使用Excel一样容易”。在其他如潮水般涌起的革命性数据科学当中,最令人感到兴奋的莫过于能够实时掌握消费者和物联网的动态,但是,这恐怕容易使得企业陷于另一种困境。 ...
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Checking if a folder exists using a .bat file [closed]

I would like to be able to check if a certain folder (FolderA) exists and if so, for a message to be displayed and then the batch file to be exited. ...
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程序员用数据思维教你如何追女生 - 杂谈 - 清泛网 - 专注C/C++及内核技术

... 针对这些爱好去邀请她,你要制定好充分的计划以及backup。提前预案,一条龙安排好,她负责美,你负责其他就好了。 4、迭代进行约会,永远不断check女孩的心 在程序员的世界,需求一直是变的。女生的世界也是一样啊。...
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What is LINQ and what does it do? [closed]

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比尔盖茨“未来生活预言”的科技豪宅(图) - 资讯 - 清泛网 - 专注C/C++及内核技术

...市区开车只需25分钟。“世外桃源2.0”这个名字来源于《CitizenKane》里 CharlesFosterKane虚构的房屋。 盖茨把岸边小山挖去一半,前临水、后倚山,堪称聚拢财气、卧虎藏龙的风水宝地。占地当然极为庞大,66000平方英亩,相当于几...
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Are the days of passing const std::string & as a parameter over?

I heard a recent talk by Herb Sutter who suggested that the reasons to pass std::vector and std::string by const & are largely gone. He suggested that writing a function such as the following is now preferable: ...