大约有 7,700 项符合查询结果(耗时:0.0253秒) [XML]
Direct vs. Delegated - jQuery .on()
...t names in that first string.) .click() is just a shorthand for that first form.
– N3dst4
Aug 1 '13 at 7:45
1
...
C++ “virtual” keyword for functions in derived classes. Is it necessary?
...
struct Derived : Base {
virtual void some_func(int) override; // ill-formed - doesn't override a base class method
};
The compiler will issue a compile-time error and the programming error will be immediately obvious (perhaps the function in Derived should have taken a float as the argument)...
What is trunk, branch and tag in Subversion? [duplicate]
...using svn-git. It just doesn't like it if the branches are inappropriately formed. So the summary is, when it comes to tools like svn-git (which you might have to use in the future), they will be tuned to work against a repo that follows these conventions, and might refuse to function correctly/usef...
How to convert an NSTimeInterval (seconds) into minutes
...e iOS 8 or OS X 10.10, this just got a lot easier. The new NSDateComponentsFormatter class allows you to convert a given NSTimeInterval from its value in seconds to a localized string to show the user. For example:
Objective-C
NSTimeInterval interval = 326.4;
NSDateComponentsFormatter *componentF...
How to copy a file to a remote server in Python using SCP or SSH?
...nation])
sts = os.waitpid(p.pid, 0)
Where destination is probably of the form user@remotehost:remotepath. Thanks to
@Charles Duffy for pointing out the weakness in my original answer, which used a single string argument to specify the scp operation shell=True - that wouldn't handle whitespace in p...
How can I sharpen an image in OpenCV?
...
You can sharpen an image using an unsharp mask. You can find more information about unsharp masking here. And here's a Python implementation using OpenCV:
import cv2 as cv
import numpy as np
def unsharp_mask(image, kernel_size=(5, 5), sigma=1.0, amount=1.0, threshold=0):
"""Return a sha...
Rename an environment with virtualenvwrapper
...ning that cpvirtualenv may not work properly due to some hard-coded path information. Here's the docs: virtualenvwrapper.readthedocs.org/en/latest/…
– modulitos
Jun 1 '15 at 8:44
...
Why is subtracting these two times (in 1927) giving a strange result?
...ticed this because I'm collecting questions like this in Noda Time, in the form of unit tests... The test has now been changed, but it just goes to show - not even historical data is safe.
EDIT: History has changed again...
In TZDB 2014f, the time of the change has moved to 1900-12-31, and it's no...
C++: variable 'std::ifstream ifs' has initializer but incomplete type
...xchange.using('gps', function() { StackExchange.gps.track('embedded_signup_form.view', { location: 'question_page' }); });
$window.unbind('scroll', onScroll);
}
};
...
How to lock compiled Java classes to prevent decompilation?
... Excelsior JET, for example, that compile your Java code directly to a platform specific native binary.
In any case You've got to remember that as the saying goes in Estonian "Locks are for animals". Meaning that every bit of code is available (loaded into memory) during the runtime and given enoug...