大约有 44,000 项符合查询结果(耗时:0.0741秒) [XML]

https://stackoverflow.com/ques... 

Multiple modals overlay

... After seeing many fixes for this, and none of them were exactly what I needed I've came up with a even shorter solution that is inspired by @YermoLamers & @Ketwaroo. Backdrop z-index fix This solution uses a setTimeout because the .modal-backdrop isn't c...
https://stackoverflow.com/ques... 

Django auto_now and auto_now_add

...Any field with the auto_now attribute set will also inherit editable=False and therefore will not show up in the admin panel. There has been talk in the past about making the auto_now and auto_now_add arguments go away, and although they still exist, I feel you're better off just using a custom save...
https://stackoverflow.com/ques... 

Best practices for catching and re-throwing .NET exceptions

What are the best practices to consider when catching exceptions and re-throwing them? I want to make sure that the Exception object's InnerException and stack trace are preserved. Is there a difference between the following code blocks in the way they handle this? ...
https://stackoverflow.com/ques... 

Difference between declaring variables before or in loop?

...etter, a or b? From a performance perspective, you'd have to measure it. (And in my opinion, if you can measure a difference, the compiler isn't very good). From a maintenance perspective, b is better. Declare and initialize variables in the same place, in the narrowest scope possible. Don't leave...
https://stackoverflow.com/ques... 

How to calculate moving average without keeping the count and data-total?

...d a way to calculate a moving cumulative average without storing the count and total data that is received so far. 8 Answer...
https://stackoverflow.com/ques... 

When should null values of Boolean be used?

Java boolean allows values of true and false while Boolean allows true , false , and null . I have started to convert my boolean s to Boolean s. This can cause crashes in tests such as ...
https://stackoverflow.com/ques... 

How do I find out which keystore was used to sign an app?

I have an app which is signed and several keystore files. I'd like to update the app, so I need to find out which one of keys was used. ...
https://stackoverflow.com/ques... 

How to initialize private static members in C++?

...variable is of const int type (e.g. int, bool, char). You can then declare and initialize the member variable directly inside the class declaration in the header file: class foo { private: static int const i = 42; }; ...
https://stackoverflow.com/ques... 

Two submit buttons in one form

...g by the name is safer, as it is a value that is not displayed to the user and therefore can be treated more as a "private" variable and less as a message to users. – sfarbota Sep 5 '17 at 21:40 ...
https://stackoverflow.com/ques... 

Will code in a Finally statement fire if I return a value in a Try block?

I'm reviewing some code for a friend and say that he was using a return statement inside of a try-finally block. Does the code in the Finally section still fire even though the rest of the try block doesn't? ...