大约有 47,000 项符合查询结果（耗时：0.0372秒） [XML]
Gradle, “sourceCompatibility” vs “targetCompatibility”?
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81
targetCompatibility and sourceCompatibility maps to -target release and -source release in java...
Removing duplicates in lists
... whatever you are trying to do:
>>> t = [1, 2, 3, 1, 2, 5, 6, 7, 8]
>>> t
[1, 2, 3, 1, 2, 5, 6, 7, 8]
>>> list(set(t))
[1, 2, 3, 5, 6, 7, 8]
>>> s = [1, 2, 3]
>>> list(set(t) - set(s))
[8, 5, 6, 7]
As you can see from the example result, the original o...
Abusing the algebra of algebraic data types - why does this work?
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Will Ness
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answered Feb 8 '12 at 16:51
C. A. McCannC. A. ...
How to convert a negative number to positive?
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edited Oct 5 '10 at 23:28
answered Oct 4 '10 at 10:26
Rog...
python numpy machine epsilon
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ali_mali_m
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Postgresql aggregate array
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edited Jun 13 '12 at 23:18
answered Jun 7 '12 at 8:56
Mich...
Java: Best way to iterate through a Collection (here ArrayList)
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answered Mar 8 '11 at 5:31
MAKMAK
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Ruby: How to get the first character of a string
...ial # prints S
The other method mentioned here doesn't work on Ruby 1.8 (not that you should be using 1.8 anymore anyway!--but when this answer was posted it was still quite common):
puts 'Smith'[0] # prints 83
Of course, if you're not doing it on a regular basis, then defining the...
throw new std::exception vs throw std::exception
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edited Nov 28 '19 at 22:35
Jarod42
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Apache Spark: map vs mapPartitions?
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Alberto Bonsanto
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answered Jan 17 '14 at 19:46
Alexey RomanovAlexey ...