大约有 20,146 项符合查询结果(耗时:0.0291秒) [XML]

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How to trim whitespace from a Bash variable?

I have a shell script with this code: 42 Answers 42 ...
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Grep for literal strings

I'm after a grep-type tool to search for purely literal strings. I'm looking for the occurrence of a line of a log file, as part of a line in a seperate log file. The search text can contain all sorts of regex special characters, e.g., []().*^$-\ . ...
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Trying to embed newline in a variable in bash [duplicate]

I have 7 Answers 7 ...
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Representing graphs (data structure) in Python

How can one neatly represent a graph in Python ? (Starting from scratch i.e. no libraries!) What data structure (e.g. dicts/tuples/dict(tuples)) will be fast but also memory efficient? One must be able to do various graph operations on it. As pointed out, the various graph representations...
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How to see which flags -march=native will activate?

I'm compiling my C++ app using GCC 4.3. Instead of manually selecting the optimization flags I'm using -march=native , which in theory should add all optimization flags applicable to the hardware I'm compiling on. But how can I check which flags is it actually using? ...
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Drag and drop files into WPF

I need to drop an image file into my WPF application. I currently have a event firing when I drop the files in, but I don't know how what to do next. How do I get the Image? Is the sender object the image or the control? ...
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How can I capture the right-click event in JavaScript? [duplicate]

I want to block the standard context menus, and handle the right-click event manually. 2 Answers ...
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How can I write data in YAML format in a file?

I need to write the below data to yaml file using Python: 2 Answers 2 ...
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Find value in an array

In Ruby, how can I find a value in an array? 10 Answers 10 ...
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How does Trello access the user's clipboard?

When you hover over a card in Trello and press Ctrl + C , the URL of this card is copied to the clipboard. How do they do this? ...