大约有 47,000 项符合查询结果（耗时：0.0452秒） [XML]
Django: Get model from string?
... This solution is deprecated in Django 1.7, see this other answer for the solution: stackoverflow.com/a/26126935/155987
– Tim Saylor
Jun 30 '15 at 22:26
...
How to close current tab in a browser window?
...gt;close</a>
You return false here to prevent the default behavior for the event. Otherwise the browser will attempt to go to that URL (which it obviously isn't).
Now the options on the window.confirm() dialog box will be OK and Cancel (not Yes and No). If you really want Yes and No you'll ...
Get the current first responder without using a private API
...ten want the first responder to resign if the user taps on the background. For this purpose I wrote a category on UIView, which I call on the UIWindow.
The following is based on that and should return the first responder.
@implementation UIView (FindFirstResponder)
- (id)findFirstResponder
{
i...
How to parse JSON in Scala using standard Scala classes?
... "completeness": 0.9
}]
}
""".stripMargin
val result = for {
Some(M(map)) <- List(JSON.parseFull(jsonString))
L(languages) = map("languages")
M(language) <- languages
S(name) = language("name")
B(active) = language("is_active")
D(completeness) = lang...
Creating a JSON response using Django and Python
...HttpResponse(json.dumps(response_data), content_type="application/json")
For Django 1.7+, use JsonResponse as shown in this SO answer like so :
from django.http import JsonResponse
return JsonResponse({'foo':'bar'})
sha...
How to add title to subplots in Matplotlib?
...
For anyone having problems with the font size for a histogram, oddly enough reducing the number of bins let me increase it. Went from 500 to 100.
– mLstudent33
Feb 19 at 8:56
...
In Python, using argparse, allow only positive integers
...izing type. You'll still need to define an actual method that decides this for you:
def check_positive(value):
ivalue = int(value)
if ivalue <= 0:
raise argparse.ArgumentTypeError("%s is an invalid positive int value" % value)
return ivalue
parser = argparse.ArgumentParser(....
What are the differences between the threading and multiprocessing modules?
...
What Giulio Franco says is true for multithreading vs. multiprocessing in general.
However, Python* has an added issue: There's a Global Interpreter Lock that prevents two threads in the same process from running Python code at the same time. This means th...
Will using 'var' affect performance?
...les use the varkeyword and got the answer that while it is only necessary for anonymous types, that it is used nonetheless to make writing code 'quicker'/easier and 'just because'.
...
Why rename synthesized properties in iOS with leading underscores? [duplicate]
...accessor method instead would look like this (though I don't recommend it, for reasons I'll explain shortly):
- (void)dealloc {
self.qux = nil; // [self setQux:nil];
[super dealloc];
}
This has the effect of releasing qux, as well as zeroing out the reference. But this can have unfortunate si...