大约有 47,000 项符合查询结果（耗时：0.0349秒） [XML]
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 ...
How can we programmatically detect which iOS version is device running on? [duplicate]
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684
Best current version, without need to deal with numeric search within NSString is to define mac...
Pythonic way to find maximum value and its index in a list?
...rdsforthewise
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answered May 31 '11 at 21:03
Sven MarnachSven Marnach
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How can I pretty-print JSON using node.js?
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840
JSON.stringify's third parameter defines white-space insertion for pretty-printing. It can be ...
How to sleep for five seconds in a batch file/cmd [duplicate]
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858
One hack is to (mis)use the ping command:
ping 127.0.0.1 -n 6 > nul
Explanation:
ping ...
Access mysql remote database from command line
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Revious
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answered Apr 6 '16 at 12:54
Venkat MVenkat M
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Check number of arguments passed to a Bash script
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answered Sep 2 '13 at 8:30
konsoleboxkonsolebox
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How to generate a random string in Ruby
I'm currently generating an 8-character pseudo-random uppercase string for "A" .. "Z":
50 Answers
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how to concatenate two dictionaries to create a new one in Python? [duplicate]
...e resulting list:
$ python -mtimeit -s'd1={1:2,3:4}; d2={5:6,7:9}; d3={10:8,13:22}' \
'd4 = dict(d1.items() + d2.items() + d3.items())'
100000 loops, best of 3: 4.93 usec per loop
Fastest: exploit the dict constructor to the hilt, then one update:
$ python -mtimeit -s'd1={1:2,3:4}; d2={5:6,7:9};...
error: command 'gcc' failed with exit status 1 while installing eventlet
...nton McKinney
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answered Jun 19 '12 at 5:15
TrevorTrevor
8,80622 gold badges...