大约有 40,100 项符合查询结果（耗时：0.0552秒） [XML]
Only get hash value using md5sum (without filename)
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jyzjyz
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How to determine the Boost version on a system?
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answered Sep 14 '10 at 12:11
AraKAraK
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Array to String PHP?
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edited Jun 24 at 15:14
Kees de Kooter
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What is more efficient? Using pow to square or just multiply it with itself?
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I tested the performance difference between x*x*... vs pow(x,i) for small i using this code:
#i...
Stop and Start a service via batch or cmd file?
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Use the SC (service control) command, it gives you a lot more options than just start & sto...
Reload Flask app when template file changes
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jd.jd.
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String length in bytes in JavaScript
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– Mike Samuel
Apr 1 '11 at 21:34
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@MikeSamuel: The lengthInUtf8Bytes function returns 5 for...
How to Batch Rename Files in a macOS Terminal?
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In your specific case you can use the following bash command (bash is the default shell on macOS...
Rails: Missing host to link to! Please provide :host parameter or set default_url_options[:host]
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p.matsinopoulos
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answered Oct 31 '12 at 22:43
Carlos CastilloCarlos Castillo
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What are the use cases for selecting CHAR over VARCHAR in SQL?
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VARCHAR(100) = 8 bytes (2 bytes of overhead)
CHAR(10) = 10 bytes (4 bytes of waste)
The bottom line is CHAR can be faster and more space-efficient for data of relatively the same length (within two characters length difference).
Note: Microsoft SQL has 2 bytes of overhead for a VARCHAR. Th...