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Turn a string into a valid filename?
I have a string that I want to use as a filename, so I want to remove all characters that wouldn't be allowed in filenames, using Python.
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Test if a command outputs an empty string
How can I test if a command outputs an empty string?
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CoInitialize浅析一 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
CoInitialize浅析一大家都知道程序中若要使用COM组件则必须要先调用CoInitialize，该函数主要是用来初始化COM运行环境。但这个函数的作用域是以线程为单位还是 大家都知道程序中若要使用COM组件则必须要先调用CoInitialize，该函数...
What happens to a declared, uninitialized variable in C? Does it have a value?
If in C I write:
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How to run a hello.js file in Node.js on windows?
I am trying to run a hello world program written in javascript in a separate file named hello.js
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记一次MongoDB性能问题 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...目专门配备了几台高性能务器，清一色的双路四核超线程CPU，外加32G内存，运维人员安装好MongoDB后，就交我手里了，我习惯于在使用新服务器前先看看相关日志，了解一下基本情况，当我浏览MongoDB日志时，发现一些警告信息：
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How can I get a count of the total number of digits in a number?
How can I get a count of the total number of digits of a number in C#? For example, the number 887979789 has 9 digits.
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Equivalent of *Nix 'which' command in PowerShell?
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How can we make xkcd style graphs?
Apparently, folk have figured out how to make xkcd style graphs in Mathematica and in LaTeX . Can we do it in R? Ggplot2-ers? A geom_xkcd and/or theme_xkcd?
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Can lambda functions be templated?
In C++11, is there a way to template a lambda function? Or is it inherently too specific to be templated?
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