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How to extract one column of a csv file
If I have a csv file, is there a quick bash way to print out the contents of only any single column? It is safe to assume that each row has the same number of columns, but each column's content would have different length.
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创业者如何发现开放却未知的秘密 - 资讯 - 清泛网 - 专注C/C++及内核技术
...司正是建立于未知的秘密之上。他以airbnb、lyft、uber和facebook举例，彼得认为只有相信并探索秘密才能发现常规之外的，近在眼前却不为常人所见的商机。
我举例来说明何为企业的秘密。
我在第三篇专栏中曾以airbnb举例，他从...
How can you strip non-ASCII characters from a string? (in C#)
How can you strip non-ASCII characters from a string? (in C#)
11 Answers
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How do I format a long integer as a string without separator in Java?
...ere will probably be more straight forward than trying to understand the documentation for MessageFormat :
6 Answers
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When should you use constexpr capability in C++11?
It seems to me that having a "function that always returns 5" is breaking or diluting the meaning of "calling a function". There must be a reason, or a need for this capability or it wouldn't be in C++11. Why is it there?
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How can I use functional programming in the real world? [closed]
Functional languages are good because they avoid bugs by eliminating state, but also because they can be easily parallelized automatically for you, without you having to worry about the thread count.
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When to use nested classes and classes nested in modules?
I'm pretty familiar with when to use subclasses and modules, but more recently I've been seeing nested classes like this:
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Android微信智能心跳方案 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...积认定：成功是绝对的，连续失败多次才可能是失败。
c）临界值避免：我们使用比计算出的心跳稍微小一点的值做为稳定心跳避免临界值。
d）动态调整：即使在一次完整的智能心跳计算过程中，我们没有找到最好的值，我们...
What does {0} mean when initializing an object?
When {0} is used to initialize an object, what does it mean? I can't find any references to {0} anywhere, and because of the curly braces Google searches are not helpful.
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