大约有 47,000 项符合查询结果（耗时：0.0453秒） [XML]
Force CloudFront distribution/file update
...
For those of you using the API to do the invalidation, approximately how long is it taking for the invalidation to take effect?
– ill_always_be_a_warriors
Jan 16 '13 at 0:57
...
Shell script while read line loop stops after the first line
...ly, a workaround which isn't specific to ssh is to redirect standard input for any command which might otherwise consume the while loop's input.
while read -r LINE; do
let count++
echo "$count $LINE"
sh ./do_work.sh "$LINE" </dev/null
done < "$FILENAME"
The addition of </dev/nul...
libpthread.so.0: error adding symbols: DSO missing from command line
...es -Wall -Wno-sign-compare -Wpointer-arith -Wdeclaration-after-statement -Wformat-security -Wswitch-enum -Wunused-parameter -Wstrict-aliasing -Wbad-function-cast -Wcast-align -Wstrict-prototypes -Wold-style-definition -Wmissing-prototypes -Wmissing-field-initializers -Wno-override-init \
-g -O2...
How do I loop through or enumerate a JavaScript object?
...
You can use the for-in loop as shown by others. However, you also have to make sure that the key you get is an actual property of an object, and doesn't come from the prototype.
Here is the snippet:
var p = {
"p1": "value1",
"...
Execution time of C program
...which could be anywhere from 1 second to several minutes). I have searched for answers, but they all seem to suggest using the clock() function, which then involves calculating the number of clocks the program took divided by the Clocks_per_second value.
...
How to customize the background/border colors of a grouped table view cell?
...ernImage:] initializer). But I'll leave the 2.0 version of the answer here for anyone that needs it…
It's harder than it really should be. Here's how I did this when I had to do it:
You need to set the UITableViewCell's backgroundView property to a custom UIView that draws the border and backg...
Double Negation in C++
...
@lzprgmr: explicit cast causes a "performance warning" on MSVC. Using !! or !=0 solves the problem, and among the two I find the former cleaner (since it will work on a greater amount of types). Also I agree that there is no reason to use either in the code in q...
jQuery UI: Datepicker set year range dropdown to 100 years
...ected year ("c-nn:c+nn"), absolute ("nnnn:nnnn"), or combinations of these formats ("nnnn:-nn"). Note that this option only affects what appears in the drop-down, to restrict which dates may be selected use the minDate and/or maxDate options.
...
How can I find the data structure that represents mine layout of Minesweeper in memory?
...t is old, is not explained in any detail and really isn't what I'm looking for.
10 Answers
...
Is there a way to detect if an image is blurry?
...
Yes, it is. Compute the Fast Fourier Transform and analyse the result. The Fourier transform tells you which frequencies are present in the image. If there is a low amount of high frequencies, then the image is blurry.
Defining the terms 'low' and 'high' is up to yo...