大约有 47,000 项符合查询结果(耗时:0.0665秒) [XML]

https://stackoverflow.com/ques... 

Most efficient way to reverse a numpy array

...vehasteveha 64.4k1616 gold badges8181 silver badges109109 bronze badges ...
https://stackoverflow.com/ques... 

How to find out which fonts are referenced and which are embedded in a PDF document

...BAAAAA+Arial-Black TrueType yes yes yes 53 0 CAAAAA+Tahoma TrueType yes yes yes 28 0 DAAAAA+Wingdings-Regular TrueType yes yes yes 43 0 EAAAAA+Webdings TrueType yes yes yes ...
https://stackoverflow.com/ques... 

Reset/remove CSS styles for element only

...initial values: .reset-this { animation : none; animation-delay : 0; animation-direction : normal; animation-duration : 0; animation-fill-mode : none; animation-iteration-count : 1; animation-name : none; animation-play-state : running; animation-timing-function ...
https://stackoverflow.com/ques... 

Unique (non-repeating) random numbers in O(1)?

I'd like to generate unique random numbers between 0 and 1000 that never repeat (i.e. 6 doesn't show up twice), but that doesn't resort to something like an O(N) search of previous values to do it. Is this possible? ...
https://stackoverflow.com/ques... 

Geometric Mean: is there a built-in?

...ositive values. gm_mean = function(x, na.rm=TRUE){ exp(sum(log(x[x > 0]), na.rm=na.rm) / length(x)) } Thanks to @ben-bolker for noting the na.rm pass-through and @Gregor for making sure it works correctly. I think some of the comments are related to a false-equivalency of NA values in the d...
https://stackoverflow.com/ques... 

drag drop files into standard html file input

...ing works in Chrome and FF, but i've yet to find a solution that covers IE10+ as well: // dragover and dragenter events need to have 'preventDefault' called // in order for the 'drop' event to register. // See: https://developer.mozilla.org/en-US/docs/Web/Guide/HTML/Drag_operations#droptarge...
https://stackoverflow.com/ques... 

Why does 'continue' behave like 'break' in a Foreach-Object?

...on a particular iteration, thus, it simulates the continue in a loop. 1..100 | ForEach-Object { if ($_ % 7 -ne 0 ) { return } Write-Host "$($_) is a multiple of 7" } There is a gotcha to be kept in mind when refactoring. Sometimes one wants to convert a foreach statement block into a pipe...
https://stackoverflow.com/ques... 

What is the best way to do a substring in a batch file?

... 401 Well, for just getting the filename of your batch the easiest way would be to just use %~n0. @...
https://stackoverflow.com/ques... 

What is the difference between svg's x and dx attribute?

... Scott CameronScott Cameron 5,02711 gold badge2626 silver badges3131 bronze badges ...
https://stackoverflow.com/ques... 

python dataframe pandas drop column using int

... | edited Feb 16 '16 at 10:48 frederikf 333 bronze badges answered Nov 30 '13 at 15:06 ...