大约有 46,000 项符合查询结果（耗时：0.0276秒） [XML]
Import a module from a relative path
How do I import a Python module given its relative path?
22 Answers
22
...
Why aren't python nested functions called closures?
I have seen and used nested functions in Python, and they match the definition of a closure. So why are they called nested functions instead of closures ?
...
Among $_REQUEST, $_GET and $_POST which one is the fastest?
...ST, by default, contains the contents of $_GET, $_POST and $_COOKIE.
But it's only a default, which depends on variables_order ; and not sure you want to work with cookies.
If I had to choose, I would probably not use $_REQUEST, and I would choose $_GET or $_POST -- depending on what my applicati...
Is there any difference between __DIR__ and dirname(__FILE__) in PHP?
It looks the same for me,but I'm not sure,
1 Answer
1
...
Are nested try/except blocks in python a good programming practice?
I'm writing my own container, which needs to give access to a dictionary inside by attribute calls. The typical use of the container would be like this:
...
unique object identifier in javascript
...in javascript, so I can see if they are the same. I don't want to use equality operators, I need something like the id() function in python.
...
Python constructors and __init__
...ion overloading in Python, meaning that you can't have multiple functions with the same name but different arguments.
In your code example, you're not overloading __init__(). What happens is that the second definition rebinds the name __init__ to the new method, rendering the first method inaccessi...
Why is “if not someobj:” better than “if someobj == None:” in Python?
...
In the first test, Python try to convert the object to a bool value if it is not already one. Roughly, we are asking the object : are you meaningful or not ? This is done using the following algorithm :
If the object has a __nonzero__ special method (as do numeric built-ins, int and float), it...
How to access outer class from an inner class?
I have a situation like so...
11 Answers
11
...
Get the full URL in PHP
...' ? "https" : "http") . "://$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]";
Editor's note: using this code has security implications. The client can set HTTP_HOST and REQUEST_URI to any arbitrary value it wants.
share
...