大约有 40,000 项符合查询结果（耗时：0.0430秒） [XML]
What is the most efficient way of finding all the factors of a number in Python?
...to flatten_iter(). If I change the code to build a list instead, it slows down slightly:
iterools (list) version: 11.62 seconds
I believe that the tricky generator functions version is the fastest possible in Python. But it's not really much faster than the reduce version, roughly 4% faster ba...
Why am I getting a “401 Unauthorized” error in Maven?
...Version = true
[DEBUG] (f) updateReleaseInfo = false
[DEBUG] (f) url = https://nexus.url.blah.com/...
[DEBUG] (f) version = 13.1
[DEBUG] -- end configuration --
In this case it uses the default value "remote-repository", which means that something went wrong.
Apparently I have specified -Dr...
Why doesn't C have unsigned floats?
...assembly", that is, as close to the metal as you can be without being tied down to a specific platform.
[edit]
C is like assembly: what you see is exactly what you get. An implicit "I'll check that this float is nonnegative for you" goes against its design philosophy. If you really want it, you ...
What is the difference between mutex and critical section?
...ne (Dell XPS-8700) to crawl back up to full speed after it decides to slow down, which it may not do if you sleep or wait for only a millisecond.
– Stevens Miller
Aug 15 '16 at 18:14
...
Are there good reasons not to use an ORM? [closed]
...up that argument. :) Of course, the real SQL exception should be somewhere down the stack trace. As you might have read from my question, I kind of agree with your answer, but I will wait with accepting it. Maybe someone else comes up with really good reasons against ORM.
– ha...
Facebook share link without JavaScript
...
You could use
<a href="https://www.facebook.com/sharer/sharer.php?u=#url" target="_blank">Share</a>
Currently there is no sharing option without passing current url as a parameter. You can use an indirect way to achieve this.
Create a ...
SQLite - UPSERT *not* INSERT or REPLACE
...
You can simplify aristotle's example down to this, if you want: INSERT OR REPLACE INTO page (id, name, title, content, author) SELECT id, 'about', 'About this site', content, 42 FROM ( SELECT NULL ) LEFT JOIN ( SELECT * FROM page WHERE name = 'about' )
...
Select first row in each GROUP BY group?
...TITION BY [...]) along with some other optimizations helped me get a query down from 30 seconds to a few milliseconds. Thanks! (PostgreSQL 9.2)
– Sam
Oct 1 '14 at 21:29
...
Get user profile picture by Id
...a large, square image (since the square default is small), you have to use https://graph.facebook.com/{facebookId}/picture?type=large&width=720&height=720.
– sudo
Jul 28 '14 at 17:29
...
capturing self strongly in this block is likely to lead to a retain cycle
...se slider inside the block. Technically this is more precise as it narrows down the potential retain cycle to only the object that you need, not all the objects inside self.
Full example:
UISlider* __weak slider = _timeSlider;
[_embeddedPlayer addPeriodicTimeObserverForInterval:CMTimeMake(1, 1)
...