大约有 47,000 项符合查询结果（耗时：0.0581秒） [XML]
Detect if a NumPy array contains at least one non-numeric value?
...
This should be faster than iterating and will work regardless of shape.
numpy.isnan(myarray).any()
Edit: 30x faster:
import timeit
s = 'import numpy;a = numpy.arange(10000.).reshape((100,100));a[10,10]=numpy.nan'
ms = [
'numpy.isnan(a).any()',
'any(n...
XAMPP - MySQL shutdown unexpectedly
When I open XAMPP and click start MySQL button and it gives me an error.
I had started it just before, but now it isn't working.
...
How to get current page URL in MVC 3
...Asp.Net will always add :81 to the Url incorrectly
– Andras Zoltan
Mar 14 '11 at 21:52
29
...
Resize fields in Django Admin
...g a date field, 8 characters wide, or a CharField, also 6 or 8 chars wide, and then the edit box goes up to 15 or 20 chars.
...
Converting newline formatting from Mac to Windows
...In conclusion, simply replace every occurence of \n by \r\n.
Both unix2dos and dos2unix are not by default available on Mac OSX.
Fortunately, you can simply use Perl or sed to do the job:
sed -e 's/$/\r/' inputfile > outputfile # UNIX to DOS (adding CRs)
sed -e 's/\r$//' inputfil...
Eclipse Android and gitignore
...itHub, it also includes amongst other things the .project, I disagree here and want your opinion. Scenario: I added new classes to my project. When I pulled from another machine, they were not in the project. Please check it out: github.com/github/gitignore/blob/master/Global/…
...
Anyone else find naming classes and methods one of the most difficult parts in programming? [closed]
...
What you are doing now is fine, and I highly recommend you stick with your current syntax, being:
context + verb + how
I use this method to name functions/methods, SQL stored procs, etc. By keeping with this syntax, it will keep your Intellisense/Code Pa...
If a folder does not exist, create it
...ied folder. Now I want, if this folder does not exist, to first create it, and then save my file to this folder. If the folder already exists, then just save the file in it.
...
ComboBox: Adding Text and Value to an Item (no Binding Source)
In C# WinApp, how can I add both Text and Value to the items of my ComboBox?
I did a search and usually the answers are using "Binding to a source".. but in my case I do not have a binding source ready in my program...
How can I do something like this:
...
Get last record in a queryset
...no real
effect (the ordering was undefined
prior to calling reverse(), and will
remain undefined afterward).
share
|
improve this answer
|
follow
|
...