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What is :: (double colon) in Python when subscripting sequences?
I know that I can use something like string[3:4] to get a substring in Python, but what does the 3 mean in somesequence[::3] ?
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What is the difference between String and string in C#?
Example ( note the case ):
63 Answers
63
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grep a file, but show several surrounding lines?
I would like to grep for a string, but also show the preceding five lines and the following five lines as well as the matched line. How would I be able to do this?
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ReSharper Abbreviations List: Where can I modify it?
I am using ReSharper 4.5, and what often happens when I am converting explicit properties into auto-properties, is that I will accidentally chose "Add XX to abbreviations list".
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马化腾给创业者的3点建议：行业跨界领域最有机会诞生创新 - 资讯 - 清泛网 ...
...建议：行业跨界领域最有机会诞生创新腾讯董事会主席兼CEO马化腾7月19日在香港向青年创业者建议，要关注两个产业跨界的部分，因为一个产业已经做得很久，已经是一片红海，我们现...腾讯董事会主席兼CEO马化腾7月19日在香港...
MySQL INNER JOIN select only one row from second table
I have a users table and a payments table, for each user, those of which have payments, may have multiple associated payments in the payments table. I would like to select all users who have payments, but only select their latest payment. I'm trying this SQL but i've never tried nested SQL sta...
How to activate an Anaconda environment
I'm on Windows 8, using Anaconda 1.7.5 64bit.
12 Answers
12
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How do you declare an interface in C++?
How do I setup a class that represents an interface? Is this just an abstract base class?
15 Answers
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What is the difference between CMD and ENTRYPOINT in a Dockerfile?
In Dockerfiles there are two commands that look similar to me: CMD and ENTRYPOINT . But I guess that there is a (subtle?) difference between them - otherwise it would not make any sense to have two commands for the very same thing.
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Why do you have to link the math library in C?
If I include <stdlib.h> or <stdio.h> in a C program I don't have to link these when compiling but I do have to link to <math.h> , using -lm with gcc, for example:
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