大约有 24,000 项符合查询结果（耗时：0.0349秒） [XML]
How do function pointers in C work?
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329
"functionPtr = &addInt;" can also be written (and often is) as " functionPtr = addInt;" which is also valid since the standard says th...
Map enum in JPA with fixed values?
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answered Aug 11 '14 at 15:32
PoolPool
10.6k1111 gold badges6060 silver badges7676 bronze badges
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Seedable JavaScript random number generator
...have a source for the 3600 initial states? Mersenne Twister is seeded by a 32 bit number, so the PRNG should have 4 billion initial states - only if the initial seed is truly random.
– Tobias P.
Aug 1 '12 at 14:46
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How do I determine the size of an object in Python?
...>>> sys.getsizeof(x)
24
>>> sys.getsizeof(sys.getsizeof)
32
>>> sys.getsizeof('this')
38
>>> sys.getsizeof('this also')
48
If you are in python < 2.6 and don't have sys.getsizeof you can use this extensive module instead. Never used it though.
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Round to at most 2 decimal places (only if necessary)
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Brian UstasBrian Ustas
45k33 gold badges2323 silver badges2020 bronze badges
407
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How to get the current date without the time?
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llrs
3,0132929 silver badges5757 bronze badges
answered Jul 25 '11 at 14:00
Jon SkeetJon Skeet
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How do I list all cron jobs for all users?
...d
13 3 * * * archiver /usr/local/bin/offsite-backup 2>&1
32 3 1 * * root /etc/cron.monthly/standard
36 4 * * * yukon /home/yukon/bin/do-daily-stuff
5 5 * * * archiver /usr/local/bin/update-logs >/dev/null
Note that it shows the user, an...
In Docker, what's the difference between a container and an image? [duplicate]
... VMs.
– coder.in.me
May 13 '18 at 5:32
add a comment
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Is there a command to list all Unix group names? [closed]
... edited Jun 3 '19 at 18:03
miken32
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answered Dec 27 '12 at 19:29
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How to obtain the number of CPUs/cores in Linux from the command line?
...le format:
# lscpu
Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
Byte Order: Little Endian
CPU(s): 8
On-line CPU(s) list: 0-7
Thread(s) per core: 1
Core(s) per socket: 4
CPU socket(s): 2
NUMA node(s): 1
Vendor ID: ...