大约有 40,000 项符合查询结果（耗时：0.0458秒） [XML]
What's the best way of scraping data from a website? [closed]
...programming interface or another mechanism to access that data programmatically.
2 Answers
...
Creating a left-arrow button (like UINavigationBar's “back” style) on a UIToolbar
... title of previous screen)
UIBarButtonItem *backButton = [[UIBarButtonItem alloc] initWithImage:[UIImage imageNamed:@"back_arrow.png"]
style:UIBarButtonItemStyleBordered
targe...
How can I default a parameter to Guid.Empty in C#?
...id() instead
public void Problem(Guid optional = new Guid())
{
// when called without parameters this will be true
var guidIsEmpty = optional == Guid.Empty;
}
You can also use default(Guid)
default(Guid) also will work exactly as new Guid().
Because Guid is a value type not reference type, ...
Remove all child elements of a DOM node in JavaScript
How would I go about removing all of the child elements of a DOM node in JavaScript?
32 Answers
...
IE9 jQuery AJAX with CORS returns “Access is denied”
The following works in all browsers except IE (I'm testing in IE 9).
12 Answers
12
...
What are the best practices for catching and re-throwing exceptions?
...don't know how to respond to the failure
}
PHP 5.5 has introduced the finally keyword, so for cleanup scenarios there is now another way to approach this. If the cleanup code needs to run no matter what happened (i.e. both on error and on success) it's now possible to do this while transparently a...
Setting log level of message at runtime in slf4j
...j that can be efficiently mapped to the Level (or equivalent) type used in all of the possible logging implementations behind the facade. Alternatively, the designers decided that your use-case is too unusual to justify the overheads of supporting it.
Concerning @ripper234's use-case (unit testing...
How to check if the URL contains a given string?
...n.href is an alias of window.location developer.mozilla.org/en-US/docs/Web/API/Window.location
– Adrian Gonzales
Feb 12 '14 at 16:03
...
Why would I prefer using vector to deque
...tances of vector may lead to unnecessary heap fragmentation (slowing down calls to new).
Also, as pointed out elsewhere on StackOverflow, there is more good discussion here: http://www.gotw.ca/gotw/054.htm .
share
...
Multiple arguments vs. options object
...bject to a function instead of passing a long list of parameters, but it really depends on the exact context.
I use code readability as the litmus test.
For instance, if I have this function call:
checkStringLength(inputStr, 10);
I think that code is quite readable the way it is and passing ind...