大约有 40,000 项符合查询结果（耗时：0.0437秒） [XML]
Positioning MKMapView to show multiple annotations at once
...nswered Mar 22 '14 at 1:27
Code CommanderCode Commander
13.3k55 gold badges5353 silver badges5959 bronze badges
...
Recommended date format for REST GET API
...dressability is not as important, you could also consider epoch time (e.g. http://example.com/start/1331162374). The URL looks a little cleaner, but you certainly lose readability.
The /2012/03/07 is another format you see a lot. You could expand upon that I suppose. If you go this route, just ma...
Convert string to a variable name
... looking for.
assign("x", 5)
x
[1] 5
but buyer beware.
See R FAQ 7.21
http://cran.r-project.org/doc/FAQ/R-FAQ.html#How-can-I-turn-a-string-into-a-variable_003f
share
|
improve this answer
...
Validating IPv4 addresses with regexp
...oid unwanted sub-matches. NB: This still doesn't take into account @dty's comment as I'm not familiar with that form of IP; though he's correct that it seems valid.
– JohnLBevan
Oct 16 '16 at 18:42
...
About catching ANY exception
...s, catch BaseException. It's on top of the Exception hierarchy:
Python 3:
https://docs.python.org/3.5/library/exceptions.html#exception-hierarchy
Python 2.7:
https://docs.python.org/2.7/library/exceptions.html#exception-hierarchy
try:
something()
except BaseException as error:
print('An e...
https URL with token parameter : how secure is it?
...
I hadn't thought about the HTTP-referer problem, but the url link would redirect to the result page, it wouldn't be a proper page (no google analytics or other third party script).
– Flackou
Mar 13 '09 at 16:41
...
Does C# have an equivalent to JavaScript's encodeURIComponent()?
...
In contrast to encodeURIComponent(), Uri.EscapeUriString() doesn't encode "+" to "%2b". Use Uri.EscapeDataString() instead.
– jwaliszko
Apr 30 '12 at 10:17
...
What's the difference between libev and libevent?
...ine I/O, time and signal handlers in one, the extra components such as the http and dns servers suffered from bad implementation quality and resultant security issues, and timers were inexact and didn't cope well with time jumps.
Libev tried to improve each of these, by not using global variables b...
What's the difference between Task.Start/Wait and Async/Await?
...will pick a thread from thread pool (Thread1) and, this thread will make a http call. If you do Wait(), this thread will be blocked until http call resolves. While it is waiting, if UserB calls /getUser/2, then, app pool will need to serve another thread (Thread2) to make http call again. You just c...