大约有 40,000 项符合查询结果（耗时：0.0426秒） [XML]
How do you get a query string on Flask?
... as with a dict and .get, you'd just get None.
– JPEG_
Oct 23 '16 at 8:46
5
@LyndsySimon: Well sp...
__proto__ VS. prototype in JavaScript
What are the differences between __proto__ and prototype ?
30 Answers
30
...
Checking a Python module version at runtime
...rmation for the module (usually something like module.VERSION or module.__version__ ), however some do not.
7 Answers
...
How does Trello access the user's clipboard?
...urn
if document.selection?.createRange().text
return
_.defer =>
$clipboardContainer = $("#clipboard-container")
$clipboardContainer.empty().show()
$("<textarea id='clipboard'></textarea>")
.val(@value)
.appendTo($clipboardC...
How do I sort an observable collection?
... you could use an extension method on the collection itself
var sortedOC = _collection.OrderBy(i => i.Key);
private void doSort()
{
ObservableCollection<Pair<ushort, string>> _collection =
new ObservableCollection<Pair<ushort, string>>();
_collection.Add...
How do I pass a method as a parameter in Python
...thodToRun()
return result
obj.method2(obj.method1)
Note: I believe a __call__() method does exist, i.e. you could technically do methodToRun.__call__(), but you probably should never do so explicitly. __call__() is meant to be implemented, not to be invoked from your own code.
If you wanted me...
What is __init__.py for?
What is __init__.py for in a Python source directory?
12 Answers
12
...
Algorithm to detect corners of paper sheet in photo
...(in OpenCV use findcontour() with some simple parameters, I think I used CV_RETR_LIST). might still struggle when it's on a white piece of paper, but was definitely providing best results.
For the Houghline2() Transform, try with the CV_HOUGH_STANDARD as opposed to the CV_HOUGH_PROBABILISTIC, it'l...
Django: How to completely uninstall a Django app?
...clear docs for more information. Basically, running ./manage.py sqlclear my_app_name gets you get the SQL statements that should be executed to get rid of all traces of the app in your DB. You still need to copy and paste (or pipe) those statements into your SQL client. For Django 1.7 and up, use ./...
How can I multiply and divide using only bit shifting and adding?
... to decompose one of the numbers by powers of two, like so:
21 * 5 = 10101_2 * 101_2 (Initial step)
= 10101_2 * (1 * 2^2 + 0 * 2^1 + 1 * 2^0)
= 10101_2 * 2^2 + 10101_2 * 2^0
= 10101_2 << 2 + 10101_2 << 0 (Decomposed)
= 10101_2 * 4 + 10101_2 *...