大约有 30,000 项符合查询结果（耗时：0.0420秒） [XML]
Declaring variables inside or outside of a loop
...performance requirements instead of having to go all over your entire code base and tweak and hack things in order to squeeze clock cycles here and there.
share
|
improve this answer
|
...
How to hide first section header in UITableView (grouped style)
...bleView accordingly. You'd need to set the contentInset to for example {0, 64, 0, 0} to have the 64px offset from top (status bar plus navigation bar). The the tableView needs to be attached at the screen top, not the topLayoutGuide (to let it reach under the nav bar)
– Julian ...
“Large data” work flows using pandas
...l of the fields in each file?
Do you ever select subsets of rows (records) based on criteria (e.g. select the rows with field A > 5)? and then do something, or do you just select fields A, B, C with all of the records (and then do something)?
Do you 'work on' all of your columns (in groups), or a...
Specifically, what's dangerous about casting the result of malloc?
...
unwindunwind
353k5959 gold badges436436 silver badges567567 bronze badges
14
...
How to create the most compact mapping n → isprime(n) up to a limit N?
...eally want speed and the range is limited, I implement a pseudo-prime test based on Fermat's little theorem. If I really want more speed (i.e. avoid O(sqrt(N)) algorithm altogether), I precompute the false positives (see Carmichael numbers) and do a binary search. This is by far the fastest test I'v...
Vertically centering Bootstrap modal window
...a helper-div and some custom css. No javascript or jQuery required.
HTML (based on Bootstrap's demo-code)
<button class="btn btn-primary btn-lg" data-toggle="modal" data-target="#myModal">Launch demo modal</button>
<!-- Modal -->
<div class="modal fade" id="myModal" tabindex=...
What is the printf format specifier for bool?
...
btoa is "binary string to base 64 string" in non-standard JavaScript (Gecko and WebKit), so you might want to use a different name.
– panzi
Oct 29 '13 at 2:18
...
C/C++ with GCC: Statically add resource files to executable/library
...
Update I have grown to prefer the control John Ripley's assembly .incbin based solution offers and now use a variant on that.
I have used objcopy (GNU binutils) to link the binary data from a file foo-data.bin into the data section of the executable:
objcopy -B i386 -I binary -O elf32-i386 foo-d...
HTML select form with option to enter custom value
...
jQuery Solution!
Demo: http://jsfiddle.net/69wP6/2/
Another Demo Below(updated!)
I needed something similar in a case when i had some fixed Options and i wanted one other option to be editable! In this case i made a hidden input that would ...
How do I specify the platform for MSBuild?
...re usually used when you have different configurations, e.g. different database connection strings, for the different environment. This is very common because you would have a different database for your production environment from your playground development environment.
They say a picture is worth...