大约有 30,000 项符合查询结果(耗时:0.0292秒) [XML]
.htm vs .html ? Which file extension naming is more correct? [closed]
... file it is. The web server does not need to pass an extension. But it sometimes does. See - URL Rewrite.
– TamusJRoyce
Dec 29 '16 at 21:40
...
How to force Chrome browser to reload .css file while debugging in Visual Studio?
...ng php or another server-side language, you can do this automatically with time(). So it would be styles.css?v=<?=time();?>
This way, the query string will be new every single time. Like I said, there are much more complicated solutions that are more dynamic, but in testing purposes this meth...
Why doesn't C have unsigned floats?
I know, the question seems to be strange. Programmers sometimes think too much. Please read on...
12 Answers
...
How can I do division with variables in a Linux shell?
... ... do something that takes a while ...
sleep 71
end=`date +%s`
let deltatime=end-start
let hours=deltatime/3600
let minutes=(deltatime/60)%60
let seconds=deltatime%60
printf "Time spent: %d:%02d:%02d\n" $hours $minutes $seconds
Another simple example - calculate number of days since 1970:
let ...
Why is a “GRANT USAGE” created the first time I grant a user privileges?
...ySQL) when I noticed this. After granting a user a privilege for the first time, another grant is created that looks like
3...
Async/await vs BackgroundWorker
...
@Tom Well, that's why Microsoft spent a lot of time and effort implementing it. If it wasn't any better they wouldn't have bothered
– Servy
Sep 13 '12 at 20:59
...
Pass variables to Ruby script via command line
...YAML file that gets parsed. That way you can have things that change every time on the command-line, and things that change occasionally configured outside your code. That separation of data and code is nice for maintenance.
Here are some samples to play with:
require 'optparse'
require 'yaml'
op...
Python pip install fails: invalid command egg_info
...I have distribute installed, but still get the egg info error almost every time I try to install a package
– Riot Goes Woof
Jul 26 '13 at 16:05
2
...
Why does sun.misc.Unsafe exist, and how can it be used in the real world?
...ss, and operate on its fields directly via unsafe get/put methods!
Compile time optimizations for JVM. HIgh performance VM using "magic", requiring low-level operations. eg: http://en.wikipedia.org/wiki/Jikes_RVM
Allocating memory, sun.misc.Unsafe.allocateMemory eg:- DirectByteBuffer constructor int...
Regex to match only letters
...e declaration of characters you can use. You still need to declare howmany times this declaration has to be used: [A-Za-z]{1,2} (to match 1 or 2 letters) or [A-Za-z]{1,*} (to match 1 or more letters)
– KristofMols
Sep 1 '10 at 13:06
...
