大约有 17,000 项符合查询结果（耗时：0.0378秒） [XML]
How to use background thread in swift?
...er block")
}
}
Swift 1.2 through 2.3
let qualityOfServiceClass = QOS_CLASS_BACKGROUND
let backgroundQueue = dispatch_get_global_queue(qualityOfServiceClass, 0)
dispatch_async(backgroundQueue, {
print("This is run on the background queue")
dispatch_async(dispatch_get_main_queue(), { (...
Change the URL in the browser without loading the new page using JavaScript
...t type="text/javascript">
var stateObj = { foo: "bar" };
function change_my_url()
{
history.pushState(stateObj, "page 2", "bar.html");
}
var link = document.getElementById('click');
link.addEventListener('click', change_my_url, false);
</script>
and a href:
<a href="#" id='click'&g...
Finding child element of parent pure javascript
...ent
4. Then use document.QuerySelectorAll(paret.nodeName.toLowerCase()+"#"_parent.getAttribute("id")+" input " ); if you want input children of the parent node
let parent = document.querySelector("div.classnameofthediv")
let parent_node = parent.nodeName.toLowerCase()
let parent_clas_arr ...
How to center align the cells of a UICollectionView?
...n UIEdgeInsetsMake(0, padding, 0, padding);
}
Swift
func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, insetForSectionAt section: Int) -> UIEdgeInsets {
let flowLayout = collectionViewLayout as! UICollectionViewFlowLayout
let nu...
Is there a way to create multiline comments in Python?
... they appear in the source code.
If you try to run this code...
def parse_token(token):
"""
This function parses a token.
TODO: write a decent docstring :-)
"""
if token == '\\and':
do_something()
elif token == '\\or':
do_something_else()
elif token =...
Android list view inside a scroll view
...
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent">
<androidx.appcompat.widget.LinearLayoutCompat
android:layout_width="match_parent"
android:layout_height="wrap_content"
android...
What version of javac built my jar?
...7. The version information is built in.
http://en.wikipedia.org/wiki/Java_class_file
Note: As mentioned in the comment below,
those bytes tell you what version the class has been compiled FOR, not
what version compiled it.
...
Pacman: how do the eyes find their way back to the monster hole?
...ection for some time. My solution worked well on a en.wikipedia.org/wiki/HP_200LX so how much more constrained could it get?
– Erich Kitzmueller
Dec 9 '11 at 21:20
...
Loop through Map in Groovy?
... is well documented, take a look here: groovy-lang.org/groovy-dev-kit.html#_iterating_on_maps
– Jack
Oct 24 '15 at 15:26
add a comment
|
...
Unicode (UTF-8) reading and writing to files in Python
...ve it.
If you actually have a string in this format you can use the string_escape codec to decode it into a normal string:
In [15]: print 'Capit\\xc3\\xa1n\n'.decode('string_escape')
Capitán
The result is a string that is encoded in UTF-8 where the accented character is represented by the two b...