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App Inventor 2 经典蓝牙(SPP) 硬件接入：hc05 · App Inventor 2 中文网
...lumn; align-items: center; } .feedback-pop:hover, .feedback-pop .feedback-img:hover { color: #3773f5 } .feedback-pop .feedback-img { display: inline-block; width: 24px; height: 24px; margin-bottom: 4px; background: url(/static/images/feedback.svg) 50% / 100% auto no-repeat; } 文档反馈 ...
Extracting extension from filename in Python
...ename".split(".")[-1]
'filename'
But you must be careful:
>>> "png".split(".")[-1]
'png' # But file doesn't have an extension
Also will not work with hidden files in Unix systems:
>>> ".bashrc".split(".")[-1]
'bashrc' # But this is not an extension
For general use, pr...
Strip HTML from strings in Python
...nswer to this question.
Look at this string (source and discussion):
<img<!-- --> src=x onerror=alert(1);//><!-- -->
The first time HTMLParser sees it, it can't tell that the <img...> is a tag. It looks broken, so HTMLParser doesn't get rid of it. It only takes out the ...
Preserve line endings
... doesn't have this issue, so thanks for your suggestion. sed -i -e 's/<img[^>]*\/>//g' *.xml replaces line endings by '\n' perl -i -p -e 's/<img[^>]*\/>//g' *.xml preserves the original line endings
– Guruniverse
Apr 8 '17 at 11:02
...
Image.Save(..) throws a GDI+ exception because the memory stream is closed
... I'm glad I saw this, my path was C\Users\mason\Desktop\pic.png. Missing colon! I would have spent forever before I noticed that.
– mason
Feb 17 '15 at 21:00
4
...
ggplot2 plot without axes, legends, etc
...ductor's hexbin (which I can do) to generate a plot that fills the entire (png) display region - no axes, no labels, no background, no nuthin'.
...
Can I have an onclick effect in CSS?
...:
#btnControl {
display: none;
}
#btnControl:checked + label > img {
width: 70px;
height: 74px;
}
<input type="checkbox" id="btnControl"/>
<label class="btn" for="btnControl"><img src="https://placekitten.com/200/140" id="btnLeft" /></label>
With th...
Click through div to underlying elements
...n for this problem.
Using AlphaImageLoader, you can even put transparent .PNG/.GIFs in the overlay div and have clicks flow through to elements underneath.
CSS:
pointer-events: none;
background: url('your_transparent.png');
IE11 conditional:
filter:progid:DXImageTransform.Microsoft.AlphaImageL...
Responsive css background images
...sed on the size of the browser window:
background-image:url('../images/bg.png');
background-repeat:no-repeat;
background-size:contain;
background-position:center;
Do not set width, height, or margins.
EDIT:
The previous line about not setting width, height or margin refers to OP's original quest...
Detect the Internet connection is offline?
... in Ajax applications.
Until that happens, either XHR or an Image() or <img> request can provide something close to the functionality you want.
Update (2014/11/16)
Major browsers now support this property, but your results will vary.
Quote from Mozilla Documentation:
In Chrome and Safari, if ...