大约有 10,400 项符合查询结果（耗时：0.0401秒） [XML]
How to upload files to server using JSP/Servlet?
...
@BalusC I created a post related to this, do you have an idea how I could retrieve extra infos from File API webKitDirectory. More details here stackoverflow.com/questions/45419598/…
– Rapster
Jul 31 '17 at 23:52
...
Does PostgreSQL support “accent insensitive” collations?
... on Github. Haven't tested it myself. I think I have come up with a better idea:
Best for now
This approach is more efficient as other solutions floating around, and safer.
Create an IMMUTABLE SQL wrapper function executing the two-parameter form with hard-wired schema-qualified function and dicti...
Timer function to provide time in nano seconds using C++
...ock is likely to have inaccurate conversions to other units. It is a good idea to set your measurements up so that you can easily change and compare clocks (as shown in this answer).
– Howard Hinnant
Apr 25 '16 at 14:23
...
std::function and std::bind: what are they, and when should they be used?
...brary feature.
std::function objects are polymorphic functions. The basic idea is to be able to refer to all the callable objects interchangeably.
I would point you to these two links for further details:
Lambda functions in C++11:
http://www.nullptr.me/2011/10/12/c11-lambda-having-fun-with-brack...
How do I get Windows to go as fast as Linux for compiling C++?
...
A few ideas:
Disable 8.3 names. This can be a big factor on drives with a large number of files and a relatively small number of folders: fsutil behavior set disable8dot3 1
Use more folders. In my experience, NTFS starts to slow ...
Difference between Big-O and Little-O Notation
...d ≤ 1
not ≤ 0, < 0, or < 1
Here's a table, showing the general idea:
(Note: the table is a good guide but its limit definition should be in terms of the superior limit instead of the normal limit. For example, 3 + (n mod 2) oscillates between 3 and 4 forever. It's in O(1) despite not...
MongoDB Many-to-Many Association
...
This doesn't seem like a good idea. If you only have six roles, sure, but what if you had 20000 objects that could be linked to 20000 more objects (in a many-many relationship)? Even the MongoDB docs hint that you should avoid having mutable, huge arrays ...
Git commits are duplicated in the same branch after doing a rebase
...ied after C7). Modifying history of pushed repos is generally a Really Bad Idea™ unless you know what you're doing. In this simple case, the issue could be solved by doing a force push from dev to origin/dev after the rebase and notifying anyone else working off of origin/dev that they're probably...
Why are elementwise additions much faster in separate loops than in a combined loop?
...g mentions cache bank conflicts. (That link is about Sandy Bridge, but the idea should still be applicable to Core 2.)
Region 3:
At this point, the data no longer fits in the L1 cache. So performance is capped by the L1 <-> L2 cache bandwidth.
Region 4:
The performance drop in the single-loop ...
Can someone explain __all__ in Python?
...he definitions. We could use a decorator to solve this problem.
I got the idea for such an export decorator from David Beazley's talk on packaging. This implementation seems to work well in CPython's traditional importer. If you have a special import hook or system, I do not guarantee it, but if yo...