大约有 47,000 项符合查询结果（耗时：0.0379秒） [XML]
Conditional compilation and framework targets
There are a few minor places where code for my project may be able to be drastically improved if the target framework were a newer version. I'd like to be able to better leverage conditional compilation in C# to switch these as needed.
...
Change a Django form field to a hidden field
I have a Django form with a RegexField , which is very similar to a normal text input field.
7 Answers
...
What are 'get' and 'set' in Swift?
...
That's actually explained right before the code:
In addition to simple properties that are stored, properties can have a getter and a setter.
class EquilateralTriangle: NamedShape {
...
When some other class wants to get that perimeter variable, they ...
adding noise to a signal in python
...
... And for those who - like me - are very early in their numpy learning curve,
import numpy as np
pure = np.linspace(-1, 1, 100)
noise = np.random.normal(0, 1, 100)
signal = pure + noise
...
Is it worth using Python's re.compile?
Is there any benefit in using compile for regular expressions in Python?
26 Answers
26...
How does the @property decorator work in Python?
...nt('Get!')
...
>>> def setter(self, value): print('Set to {!r}!'.format(value))
...
>>> def deleter(self): print('Delete!')
...
>>> prop = property(getter)
>>> prop.fget is getter
True
>>> prop.fset is None
True
>>> prop.fdel is None
True
Ne...
How to import the class within the same directory or sub directory?
...ectory as well, and then use regular import statements, with dot notation. For each level of directory, you need to add to the import path.
bin/
main.py
classes/
user.py
dir.py
So if the directory was named "classes", then you'd do this:
from classes.user import User
fro...
How to stop flask application without using ctrl-c
...stop flask application by using flask-script.
I have searched the solution for a while. Because the framework doesn't provide "app.stop()" API, I am curious about how to code this. I am working on Ubuntu 12.10 and Python 2.7.3.
...
Objective-C declared @property attributes (nonatomic, copy, strong, weak)
...must use each attribute: nonatomic , copy , strong , weak , and so on, for a declared property, and explain what each does? Some sort of example would be great also. I am using ARC.
...
Remove a cookie
...loper tools in chrome, I can see that the expire time is set to 1 second before the epoch (e.g. 1969-12-31 23:59:59) however when I next submit the page the cookie is submitted to the server. When I changed the -1 to 1 (e.g. 1970-01-01 00:00:01) to give the following command: setcookie('Hello',...