大约有 22,000 项符合查询结果（耗时：0.0364秒） [XML]
Django. Override save for model
...
You may supply extra argument for confirming a new image is posted.
Something like:
def save(self, new_image=False, *args, **kwargs):
if new_image:
small=rescale_image(self.image,width=100,height=100)
self.image_small=S...
Quick Sort Vs Merge Sort [duplicate]
...deed. Both explanation and simple implementations.
– extraneon
Apr 8 '10 at 8:05
1
@Stephan Egger...
What are some uses of template template parameters?
....2, 3.3, 4.4 };
std::cout << vf << '\n';
std::list<char> lc { 'a', 'b', 'c', 'd' };
std::cout << lc << '\n';
std::deque<int> di { 1, 2, 3, 4 };
std::cout << di << '\n';
return 0;
}
Output
std::ostream &operator<<...
How to make unicode string with python3
...
Literal strings are unicode by default in Python3.
Assuming that text is a bytes object, just use text.decode('utf-8')
unicode of Python2 is equivalent to str in Python3, so you can also write:
str(text, 'utf-8')
if you prefer.
...
How do you validate a URL with a regular expression in Python?
...path to look unix-like? Or windows-like? Do you want to remove the query string? Or preserve it?
These are not RFC-specified validations. These are validations unique to your application.
share
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Design Patterns web based applications [closed]
... try {
Action action = ActionFactory.getAction(request);
String view = action.execute(request, response);
if (view.equals(request.getPathInfo().substring(1)) {
request.getRequestDispatcher("/WEB-INF/" + view + ".jsp").forward(request, response);
}
...
What are the Ruby Gotchas a newbie should be warned about? [closed]
...onvention — for example, regular-expression searches — return numbers, strings, lists, or other non-false values on success, but nil on failure (e.g., mismatch). This convention is also used in Smalltalk, where only the special objects true and false can be used in a boolean expression.
Versions...
Java: function for arrays like PHP's join()?
I want to join a String[] with a glue string. Is there a function for this?
22 Answers
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How can I decode HTML characters in C#?
...aracter entities. Is there anything in .NET that can convert them to plain strings?
10 Answers
...
How do you print out a stack trace to the console/log in Cocoa?
...#import <UIKit/UIKit.h>
#import "AppDelegate.h"
int main(int argc, char *argv[])
{
@autoreleasepool {
int retval;
@try{
retval = UIApplicationMain(argc, argv, nil, NSStringFromClass([AppDelegate class]));
}
@catch (NSException *exception)
...