大约有 48,000 项符合查询结果（耗时：0.0533秒） [XML]
How large should my recv buffer be when calling recv in the socket library
...
answered May 19 '10 at 0:53
cafcaf
210k3434 gold badges276276 silver badges423423 bronze badges
...
Effects of changing Django's SECRET_KEY
... looks like Django added the get_random_secret_key() function in version 1.10. You could use that to generate a new secret key.
$ ./manage.py shell -c "from django.core.management.utils import get_random_secret_key; print(get_random_secret_key())"
s!)5@5s79sp=92a+!f4v!1g0d0+64ln3d$xm1f_7=749ht&-...
In javascript, is an empty string always false as a boolean?
...
|
edited Feb 10 '14 at 20:38
Charles Burns
9,35977 gold badges5656 silver badges7676 bronze badges
...
What is memoization and how can I use it in Python?
...
answered Jan 1 '10 at 15:05
jasonjason
214k3131 gold badges392392 silver badges504504 bronze badges
...
Best way to detect that HTML5 is not supported
...
103
There are two popular methods of detecting canvas support in browsers:
Matt's suggestion of ...
How to get the first non-null value in Java?
...
108
No, there isn't.
The closest you can get is:
public static <T> T coalesce(T ...items) ...
Chrome Extension Message passing: response not sent
...
10
I swear this is the most unintuitive API I've ever used.
– michaelsnowden
Jul 17 '16 at 8:06
...
In C++, if throw is an expression, what is its type?
...nable happen.
– Omnifarious
Jan 21 '10 at 18:38
add a comment
|
...
Most efficient way to determine if a Lua table is empty (contains no entries)?
...
answered Aug 10 '09 at 1:14
Norman RamseyNorman Ramsey
184k5757 gold badges336336 silver badges517517 bronze badges
...
Replacing NAs with latest non-NA value
...,'a',NA,NA,NA,NA,NA,NA,NA,NA,'b','c','d',NA,NA,NA,NA,NA,'e')
xx = rep(x, 1000000)
system.time({ yzoo = na.locf(xx,na.rm=F)})
## user system elapsed
## 2.754 0.667 3.406
system.time({ yrep = repeat.before(xx)})
## user system elapsed
## 0.597 0.199 0.793
Edit
As this ...