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LinkedIn联合创始人:初创企业早期别花钱买用户 - 资讯 - 清泛网 - 专注C/C...

...预算、市场营销活动以及市场推广专员的情况下,Growth Hacking 也可以获得良好的效果,Growth Hacking在亚洲企业中正在逐渐流行。 注:9月10日,LinkedIn联合创始人及产品管理副总裁Allen Blue在微软创投加速器进行了“增长黑客:给Li...
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Run git pull over all subdirectories [duplicate]

How can I update multiple git repositories from their shared parent's directory without cd 'ing into each repo's root directory? I have the following which are all separate git repositories ( not submodules): ...
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Is there a standard sign function (signum, sgn) in C/C++?

I want a function that returns -1 for negative numbers and +1 for positive numbers. http://en.wikipedia.org/wiki/Sign_function It's easy enough to write my own, but it seems like something that ought to be in a standard library somewhere. ...
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Insert a row to pandas dataframe

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Initialization of all elements of an array to one default value in C++?

C++ Notes: Array Initialization has a nice list over initialization of arrays. I have a 13 Answers ...
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程序员之网络安全系列(三):数据加密之对称加密算法 - 更多技术 - 清泛网...

...: 假设我们要对LOVE加密,我们可以先定义字母的顺序ABCDEFGHIJKLMNOPQRSTUVWXYZ,然后我们让每个字母向后移动两位,那么LOVE就变为了NQXG L------>N O------>Q V------>X E------> LOVE--->NQXG 我想这就是最简单的加密方式。 密钥加密技术...
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MongoDB与内存 - 大数据 & AI - 清泛网移动版 - 专注C/C++及内核技术

... buffers Swap: 2097144k total, 100k used, 2097044k free, 26482048k cached VIRT RES SHR %MEM 1892g 21g 21g 69.6 这台MongoDB服务器有没有性能问题?大家可以一边思考一边继续阅读。 先讲讲Linux是如何管理内存的 在Linux里(别的系统也差不多...
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Check if character is number?

I need to check whether justPrices[i].substr(commapos+2,1) . 22 Answers 22 ...
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Why are these constructs using pre and post-increment undefined behavior?

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How do I run a Java program from the command line on Windows?

I'm trying to execute a Java program from the command line in Windows. Here is my code: 12 Answers ...