大约有 4,900 项符合查询结果（耗时：0.0223秒） [XML]
Are static variables shared between threads?
...lem is more complex. Visibility of shared data can be affected not only by CPU caches, but also by out-of-order execution of instructions.
Therefore Java defines a Memory Model, that states under which circumstances threads can see consistent state of the shared data.
In your particular case, addi...
How to understand nil vs. empty vs. blank in Ruby
...
I'd mention presence!
– Marc-André Lafortune
Apr 3 '13 at 2:12
2
As an addit...
How can I generate a unique ID in Python? [duplicate]
...dom library :)
1 million id per second ?... on a Intel(R) Core(TM)2 CPU 6400 @ 2.13GHz, you get :
>>> timeit.timeit(uniqueid,number=40000)
1.0114529132843018
an average of 40000 id/second
"""
mynow=datetime.now
sft=datetime.strftime
# store old dat...
Get table column names in MySQL?
... save bytes by using desc my_table; :-)
– Alfonso Pérez
Jan 28 '15 at 18:10
3
DESC for describ...
Changing column names of a data frame
...ot using names() instead of colnames()?
– Antoine Lizée
Oct 10 '13 at 6:40
5
Great! You can also...
Fastest way to extract frames using ffmpeg?
...
I'd like to add that while JPEG isn't really hard on the CPU, uncompressed Bitmaps is really really hard on the storage, so I doubt you'll get higher throughput with BMP compared to JPEG.
– Marcus Müller
Apr 3 '17 at 13:12
...
Create a matrix of scatterplots (pairs() equivalent) in ggplot2
... this gist.github.com/1405150 to work
– Etienne Low-Décarie
Apr 30 '12 at 15:26
1
The first part...
Returning anonymous type in C#
...ppen to know if it as been transferred elsewhere?
– Rémi
Sep 13 '16 at 20:48
add a comment
|
...
How can I open a Shell inside a Vim Window?
... edited Jul 8 '15 at 22:49
Félix Gagnon-Grenier
6,92299 gold badges4242 silver badges5454 bronze badges
answered May 6 '10 at 19:41
...
Is it possible to use Java 8 for Android development?
...rted by Android is try-with-resources
– Matthieu Harlé
Jul 23 '14 at 10:31
12
Java 7 working wit...