大约有 47,000 项符合查询结果（耗时：0.0563秒） [XML]
C/C++ macro string concatenation
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158
If they're both strings you can just do:
#define STR3 STR1 STR2
The preprocessor automaticall...
How to override trait function and call it from the overridden function?
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Maciej Pyszyński
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answered Aug 13 '12 at 17:30
ircmaxellircmaxell...
Check OS version in Swift?
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answered Jul 1 '14 at 8:40
mihomiho
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What's the difference between lists enclosed by square brackets and parentheses in Python?
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278
Square brackets are lists while parentheses are tuples.
A list is mutable, meaning you can chan...
What does -XX:MaxPermSize do?
...umentation lists the other HotSpot arguments.
Update : Starting with Java 8, both the permgen space and this setting are gone. The memory model used for loaded classes and methods is different and isn't limited (with default settings). You should not see this error any more.
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Why are `private val` and `private final val` different?
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82
So, this is just a guess, but it was a perennial annoyance in Java that final static variables ...
SQL UPDATE all values in a field with appended string CONCAT not working
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answered Nov 8 '10 at 21:46
Marc BMarc B
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How to map and remove nil values in Ruby
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8 Answers
8
Active
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Check if a value exists in pandas dataframe index
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258
This should do the trick
'g' in df.index
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Git pre-push hooks
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answered Nov 16 '10 at 16:48
ordnungswidrigordnungswidrig
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