大约有 40,000 项符合查询结果(耗时:0.0327秒) [XML]

https://stackoverflow.com/ques... 

How to import the class within the same directory or sub directory?

I have a directory that stores all the .py files. 13 Answers 13 ...
https://stackoverflow.com/ques... 

What is a “callable”?

...t's clear what a metaclass is , there is an associated concept that I use all the time without knowing what it really means. ...
https://stackoverflow.com/ques... 

Python unittest - opposite of assertRaises?

...the correct solution in fact. The solution proposed by user9876 is conceptually flawed: if you test for the non-raising of say ValueError, but ValueError is instead raised, your test must exit with a failure condition, not an error one. On the other hand, if in running the same code you would raise ...
https://stackoverflow.com/ques... 

foreach vs someList.ForEach(){}

... The most common one is described in the comments to this question. Generally, if you are looking to remove multiple items from a list, you would want to separate the determination of which items to remove from the actual removal. It doesn't keep your code compact, but it guarantees that you do n...
https://stackoverflow.com/ques... 

How to check BLAS/LAPACK linkage in NumPy and SciPy?

... Given its widespread usefulness, numpy.__config__ should really be a public API. Nonetheless, you win this round, davost. – Cecil Curry Feb 5 '16 at 5:51 2 ...
https://stackoverflow.com/ques... 

URL rewriting with PHP

... You can essentially do this 2 ways: The .htaccess route with mod_rewrite Add a file called .htaccess in your root folder, and add something like this: RewriteEngine on RewriteRule ^/?Some-text-goes-here/([0-9]+)$ /picture.php?id=$1 Thi...
https://stackoverflow.com/ques... 

How to make inline functions in C#

...=> x + y; void print(int x) { Console.WriteLine(x); } There are basically two different types for these: Func and Action. Funcs return values but Actions don't. The last type parameter of a Func is the return type; all the others are the parameter types. There are similar types with different...
https://stackoverflow.com/ques... 

Programmatically Request Access to Contacts

...ss to the address book must be granted before it can be access programmatically. Here is what I ended up doing. #import <AddressBookUI/AddressBookUI.h> // Request authorization to Address Book ABAddressBookRef addressBookRef = ABAddressBookCreateWithOptions(NULL, NULL); if (ABAddress...
https://stackoverflow.com/ques... 

What does functools.wraps do?

... def with_logging(*args, **kwargs): print(func.__name__ + " was called") return func(*args, **kwargs) return with_logging then when you say @logged def f(x): """does some math""" return x + x * x it's exactly the same as saying def f(x): """does some math""" ...
https://stackoverflow.com/ques... 

How do I check for C++11 support?

...t have (partial) compiler-level support versus a standard C++ library with all the C++11 changes. So Boost's defines mentioned in another answer remain the only sane way to figure out if there is, for example, support for C++11 threads and other specific parts of the standard. ...