大约有 40,000 项符合查询结果（耗时：0.0331秒） [XML]
Measure elapsed time in Swift
...e(nanoTime) / 1_000_000_000 // Technically could overflow for long running tests
print("Time to evaluate problem \(problemNumber): \(timeInterval) seconds")
return theAnswer
}
Old answer
For Swift 1 and 2, my function uses NSDate:
// Swift 1
func evaluateProblem(problemNumber: Int, proble...
How to remove a Gitlab project?
I have created several repositories in GitLab. One of those was for testing purposes and has some commits and branches. I want to delete or remove this repository. How can I do this?
...
How do I specify new lines on Python, when writing on files?
...ch is easier.
Example 1
Input
line1 = "hello how are you"
line2 = "I am testing the new line escape sequence"
line3 = "this seems to work"
You can write the '\n' separately:
file.write(line1)
file.write("\n")
file.write(line2)
file.write("\n")
file.write(line3)
file.write("\n")
Output
hello...
Fastest method of screen capturing on Windows
...e the context you created
DeleteDC(hDest);
I'm not saying this is the fastest, but the BitBlt operation is generally very fast if you're copying between compatible device contexts.
For reference, Open Broadcaster Software implements something like this as part of their "dc_capture" method, altho...
SHA512 vs. Blowfish and Bcrypt [closed]
...ons of trials per second using equipment that costs on the order of $1000, testing all passwords up to 8 characters long in a few months.
If however, the digest output is "fed back" thousands of times, it will take hundreds of years to test the same set of passwords on that hardware. Bcrypt achiev...
sql query to return differences between two tables
... xml, @Data2 xml
select @Data1 =
(
select *
from (select * from Test1 except select * from Test2) as a
for xml raw('Data')
)
select @Data2 =
(
select *
from (select * from Test2 except select * from Test1) as a
for xml raw('Data')
)
;with CTE1 as (
select
T...
Open file dialog box in JavaScript
...
Though I haven't tested it enough, "visibility: hidden;" seems more compatible. In addition, despite the opacity: 0 a click event will trigger if the "invisible" element clicked, while visibility: hidden will not.
– Aron...
Using GPU from a docker container?
...e execution context rather than lxc.
Environment
These instructions were tested on the following environment:
Ubuntu 14.04
CUDA 6.5
AWS GPU instance.
Install nvidia driver and cuda on your host
See CUDA 6.5 on AWS GPU Instance Running Ubuntu 14.04 to get your host machine setup.
Install Dock...
How could the UNIX sort command sort a very large file?
..._PER_CHUNK lines
echo and each chunk will be sorted in parallel
}
# test if we have two arguments on the command line
if [ $# != 2 ]
then
usage
exit
fi
#Cleanup any lefover files
rm -f $SORTED_CHUNK_FILES > /dev/null
rm -f $CHUNK_FILE_PREFIX* > /dev/null
rm -f $SORTED_FILE
#Sp...
How can I get the behavior of GNU's readlink -f on a Mac?
...tation, but I needed a) a portable, pure shell implementation, and b) unit-test coverage, as the number of edge-cases for something like this are non-trivial.
See my project on Github for tests and full code. What follows is a synopsis of the implementation:
As Keith Smith astutely points out, rea...