大约有 48,000 项符合查询结果（耗时：0.0572秒） [XML]
Select rows of a matrix that meet a condition
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answered Jun 10 '15 at 19:20
mavez DABASmavez DABAS
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What is the difference between include and extend in Ruby?
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answered Feb 15 '11 at 19:10
John DouthatJohn Douthat
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How to check if a table exists in a given schema
...w, thanks.
– Erwin Brandstetter
Jan 10 '17 at 4:48
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For each row return the column name of the largest value
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100
One option using your data (for future reference, use set.seed() to make examples using sample...
Can anyone explain this strange behavior with signed floats in C#?
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answered Mar 24 '10 at 15:55
SLaksSLaks
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snprintf and Visual Studio 2010
I'm unfortunate enough to be stuck using VS 2010 for a project, and noticed the following code still doesn't build using the non-standards compliant compiler:
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Why a function checking if a string is empty always returns true? [closed]
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edited Jan 10 '12 at 21:35
axel22
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Which concurrent Queue implementation should I use in Java?
..., ArrayBlockingQueue is a queue of a fixed size. So if you set the size at 10, and attempt to insert an 11th element, the insert statement will block until another thread removes an element. The fairness issue is what happens if multiple threads try to insert and remove at the same time (in other wo...
Extract substring using regexp in plain bash
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Using pure bash :
$ cat file.txt
US/Central - 10:26 PM (CST)
$ while read a b time x; do [[ $b == - ]] && echo $time; done < file.txt
another solution with bash regex :
$ [[ "US/Central - 10:26 PM (CST)" =~ -[[:space:]]*([0-9]{2}:[0-9]{2}) ]] &&
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How to list files in a directory in a C program?
...nt in C.
Source : http://faq.cprogramming.com/cgi-bin/smartfaq.cgi?answer=1046380353&id=1044780608
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