大约有 40,000 项符合查询结果(耗时:0.0634秒) [XML]

https://stackoverflow.com/ques... 

Determine if code is running as part of a unit test

I have a unit test (nUnit). Many layers down the call stack a method will fail if it is running via a unit test. 19 Answers...
https://stackoverflow.com/ques... 

When should you use constexpr capability in C++11?

... "function that always returns 5" is breaking or diluting the meaning of "calling a function". There must be a reason, or a need for this capability or it wouldn't be in C++11. Why is it there? ...
https://stackoverflow.com/ques... 

A cron job for rails: best practices?

... I'm using the rake approach (as supported by heroku) With a file called lib/tasks/cron.rake .. task :cron => :environment do puts "Pulling new requests..." EdiListener.process_new_messages puts "done." end To execute from the command line, this is just "rake cron". This command ...
https://stackoverflow.com/ques... 

Can't use Swift classes inside Objective-C

... -Swift.h file, only the bridging headers. So I created it, but it's actually empty. I can use all my ObjC classes in Swift, but I can't do it vice versa. I marked my swift class with @objc but it didn't help. What can I do now? ...
https://stackoverflow.com/ques... 

How to connect android emulator to the internet

... Check your firewall settings - as @moon_walker333 mentions in this thread. AVG was blocking my application. – ccbunney Apr 20 '13 at 8:06 1 ...
https://stackoverflow.com/ques... 

In Python how should I test if a variable is None, True or False

... a = 'foo' if a: print 'its true' a is not actually TRUE, it's just not none – wesm Apr 3 '15 at 21:06 ...
https://stackoverflow.com/ques... 

Converting SVG to PNG using C# [closed]

... You can call the command-line version of inkscape to do this: http://harriyott.com/2008/05/converting-svg-images-to-png-in-c.aspx Also there is a C# SVG rendering engine, primarily designed to allow SVG files to be used on the web o...
https://stackoverflow.com/ques... 

Is there any pythonic way to combine two dicts (adding values for keys that appear in both)?

...t;> A + B Counter({'c': 7, 'b': 5, 'd': 5, 'a': 1}) Counters are basically a subclass of dict, so you can still do everything else with them you'd normally do with that type, such as iterate over their keys and values. ...
https://stackoverflow.com/ques... 

Django Passing Custom Form Parameters to Formset

...m functools import partial, wraps from django.forms.formsets import formset_factory ServiceFormSet = formset_factory(wraps(ServiceForm)(partial(ServiceForm, affiliate=request.affiliate)), extra=3) I think this is the cleanest approach, and doesn't affect ServiceForm in any way (i.e. by making it ...
https://stackoverflow.com/ques... 

Nested defaultdict of defaultdict

... For an arbitrary number of levels: def rec_dd(): return defaultdict(rec_dd) >>> x = rec_dd() >>> x['a']['b']['c']['d'] defaultdict(<function rec_dd at 0x7f0dcef81500>, {}) >>> print json.dumps(x) {"a": {"b": {"c": {"d": {}}}}} ...