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20个命令行工具监控 Linux 系统性能 - 更多技术 - 清泛网 - 专注C/C++及内核技术
20个命令行工具监控 Linux 系统性能原文出处：Tecmint.Com-Ravi Saive译文出处：Linux story-FOREST对于每个系统管理员或网络管理员来说，每天要监控和调试 Linux 系统性...原文出处： Tecmint.Com-Ravi Saive 译文出处：Linux story-FOREST
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Find a pair of elements from an array whose sum equals a given number
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edited Sep 12 at 14:53
hjpotter92
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C++11 reverse range-based for-loop
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Actually Boost does have such adaptor: boost::adaptors::reverse.
#include <list>
#incl...
How to get the separate digits of an int number?
I have numbers like 1100, 1002, 1022 etc. I would like to have the individual digits, for example for the first number 1100 I want to have 1, 1, 0, 0.
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How do you round a number to two decimal places in C#?
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Here's some examples:
decimal a = 1.994444M;
Math.Round(a, 2); //returns 1.99
decimal b = 1.995555M;
Math.Round(b, 2); //returns 2.00
You might also want to look at bankers rounding / round-to-even with the following overload:
Math.Round(a, 2, MidpointRounding.ToEven);
There's...
Python add item to the tuple
...r session as tuple. When I add first one it works but tuple looks like (u'2',) but when I try to add new one using mytuple = mytuple + new.id got error can only concatenate tuple (not "unicode") to tuple .
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Difference between map, applymap and apply methods in Pandas
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Straight from Wes McKinney's Python for Data Analysis book, pg. 132 (I highly recommended this book):
Another frequent operation is applying a function on 1D arrays to each column or row. DataFrame’s apply method does exactly this:
In [116]: frame = DataFrame(np.random.randn(4, 3), ...
JavaScript equivalent to printf/String.Format
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