大约有 47,000 项符合查询结果(耗时:0.0360秒) [XML]
Auto margins don't center image in page
...a flexbox: display: flex; align-items: center; justify-content: center and now your content is horizontally and vertically centered. Or move that to align-self: center; justify-self: center on the content itself. css-tricks.com/snippets/css/a-guide-to-flexbox
– Mike 'Pomax' Kam...
How to create module-wide variables in Python? [duplicate]
...name.
Imagine a file called foo.py, containing this single line:
X = 1
Now imagine you import it.
import foo
print(foo.X) # prints 1
However, let's suppose you want to use one of your module-scope variables as a global inside a function, as in your example. Python's default is to assume tha...
best way to get the key of a key/value javascript object
...
You can now use spread operator for this purpose, it looks better: const [firstKey, ...rest] = Object.keys(obj);
– Nerlin
Dec 13 '17 at 21:08
...
Link and execute external JavaScript file hosted on GitHub
...
There is a good workaround for this, now, by using jsdelivr.net.
Steps:
Find your link on GitHub, and click to the "Raw" version.
Copy the URL.
Change raw.githubusercontent.com to cdn.jsdelivr.net
Insert /gh/ before your username.
Remove the branch name.
(Opt...
How to update gradle in android studio?
...of course I updated. After the installation I restarted Android Studio but now I get this message:
14 Answers
...
Java using enum with switch statement
...ue and then switch on the enum value.
enum GuideView {
SEVEN_DAY,
NOW_SHOWING,
ALL_TIMESLOTS
}
// Working on the assumption that your int value is
// the ordinal value of the items in your enum
public void onClick(DialogInterface dialog, int which) {
// do your own bounds checking...
How to declare a global variable in a .js file
..._PATH/global.js" type="text/javascript"></script>
<!-- Now we can reference variables, objects, functions etc.
defined in global.js -->
<script src="/YOUR_PATH/otherJsFile.js" type="text/javascript"></script>
</head>
[...]
</h...
What are dictionary view objects?
...eritems() returns an iterator over the dictionary’s (key, value) pairs.
Now take the following example to see the difference between an interator of dict and a view of dict
>>> d = {"x":5, "y":3}
>>> iter = d.iteritems()
>>> del d["x"]
>>> for i in iter: print...
How do I skip an iteration of a `foreach` loop?
...e simplest (though maybe the logic inside is the same) way of doing this - now that you have Linq available. Though you should ensure that .Skip is called only once for performance reasons. (Yeah, I see now that this is not the straight forward answer to OP's question, though a valuable addition to ...
Change “on” color of a Switch
...
As of now it is better to use SwitchCompat from the AppCompat.v7 library. You can then use simple styling to change the color of your components.
values/themes.xml:
<style name="Theme.MyTheme" parent="Theme.AppCompat.Light">...
