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Python function global variables?
I know I should avoid using global variables in the first place due to confusion like this, but if I were to use them, is the following a valid way to go about using them? (I am trying to call the global copy of a variable created in a separate function.)
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What is a simple command line program or script to backup SQL server databases?
I've been too lax with performing DB backups on our internal servers.
11 Answers
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谈谈创业公司技术的工作模式 - 资讯 - 清泛网 - 专注C/C++及内核技术
...这样才能保证高效开发。如果横向切分，一些人研发service、一些人研发dao，一些研发jsp会增加不必要的沟通浪费时间。如果后面项目庞大了，还是建议应该增加一个专业的前端js开发和后台DBA。研发开发好自己的业务代码对功能...
Vim search and replace selected text
Let's say we have a text, and I enter visual mode and select some text. How do I quickly do a search for the highlighted text and replace it with something else?
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Aggregate / summarize multiple variables per group (e.g. sum, mean)
...om a data frame, is there a easy way to aggregate ( sum , mean , max et c) multiple variables simultaneously?
8 Answers
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How do you create a static class in C++?
How do you create a static class in C++? I should be able to do something like:
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“unpacking” a tuple to call a matching function pointer
I'm trying to store in a std::tuple a varying number of values, which will later be used as arguments for a call to a function pointer which matches the stored types.
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Why are preprocessor macros evil and what are the alternatives?
I have always asked this but I have never received a really good answer; I think that almost any programmer before even writing the first "Hello World" had encountered a phrase like "macro should never be used", "macro are evil" and so on, my question is: why? With the new C++11 is there a real alte...
“Adobe Flash Player因过期而遭到阻止”的内幕起因和解决办法 - 更多技术 ...
...er因过期而遭到阻止”的内幕起因和解决办法Flash真的被Facebook首席安全官斯塔莫斯一句话说中，要不堪重负了吗？今天，小编和很多使用Chrome浏览器的同事都遇到了Adobe Flash Playe...Flash真的被Facebook首席安全官斯塔莫斯一句话说中...