大约有 46,000 项符合查询结果(耗时:0.0542秒) [XML]

https://stackoverflow.com/ques... 

Pandas selecting by label sometimes return Series, sometimes returns DataFrame

In Pandas, when I select a label that only has one entry in the index I get back a Series, but when I select an entry that has more then one entry I get back a data frame. ...
https://stackoverflow.com/ques... 

Select random row from a sqlite table

... Have a look at Selecting a Random Row from an SQLite Table SELECT * FROM table ORDER BY RANDOM() LIMIT 1; share | improve this answer | ...
https://stackoverflow.com/ques... 

How to scale SVG image to fill browser window?

...my site using (roughly) this technique, albeit with 5% padding all around, and using position:absolute instead of position:fixed: http://phrogz.net/svg/svg_in_xhtml5.xhtml (Using position:fixed prevents a very edge-case scenario of linking to a sub-page anchor on the page, and overflow:hidden can e...
https://stackoverflow.com/ques... 

Instance attribute attribute_name defined outside __init__

... @MericOzcan either setting a bunch of attributes to None and then setting them later in a parse_args function OR returning a short tuple from parse_args is OK. ideally, parse_args should be testable without needing a wizard instance. – Erik Aronesty ...
https://stackoverflow.com/ques... 

How to replace captured groups only?

I have HTML code before and after the string: 5 Answers 5 ...
https://stackoverflow.com/ques... 

Showing the same file in both columns of a Sublime Text window

... -> New View Into File. You can then drag the new tab to the other pane and view the file twice. There are several ways to create a new pane. As described in other answers, on Linux and Windows, you can use AltShift2 (Option ⌥Command ⌘2 on OS X), which corresponds to View → Layout → Colu...
https://stackoverflow.com/ques... 

Preventing scroll bars from being hidden for MacOS trackpad users in WebKit/Blink

...-scrollbar pseudo-elements [blog]. You can disable the default appearance and behaviour by setting -webkit-appearance [docs] to none. Because you're removing the default style, you'll also need to specify the style yourself or the scroll bar will never show up. The following CSS recreates the app...
https://stackoverflow.com/ques... 

In-memory size of a Python structure

Is there a reference for the memory size of Python data stucture on 32- and 64-bit platforms? 7 Answers ...
https://stackoverflow.com/ques... 

PHP memory profiling

...page's memory usage? For example, to see how much memory my data is using, and/or which function calls are allocating the most memory. ...
https://stackoverflow.com/ques... 

CSS image resize percentage of itself?

...ddle This method resize image only visual not it actual dimensions in DOM, and visual state after resize centered in middle of original size. html: <img class="fake" src="example.png" /> css: img { -webkit-transform: scale(0.5); /* Saf3.1+, Chrome */ -moz-transform: scale(0.5); /* FF3....