大约有 36,010 项符合查询结果(耗时:0.0473秒) [XML]

https://stackoverflow.com/ques... 

How to var_dump variables in twig templates?

...n where you only present what you have been given is fine and all, but how do you know what is available? Is there a "list all defined variables" functionality in TWIG? Is there a way to dump a variable? ...
https://stackoverflow.com/ques... 

A fast method to round a double to a 32-bit int explained

...reading Lua's source code, I noticed that Lua uses a macro to round a double to a 32-bit int . I extracted the macro , and it looks like this: ...
https://stackoverflow.com/ques... 

Should you always favor xrange() over range()?

...are still a few cases why you might prefer range(): In python 3, range() does what xrange() used to do and xrange() does not exist. If you want to write code that will run on both Python 2 and Python 3, you can't use xrange(). range() can actually be faster in some cases - eg. if iterating over t...
https://stackoverflow.com/ques... 

List of lists changes reflected across sublists unexpectedly

... need to make sure that you create a new list at each position. One way to do it is [[1]*4 for _ in range(3)] which will reevaluate [1]*4 each time instead of evaluating it once and making 3 references to 1 list. You might wonder why * can't make independent objects the way the list comprehens...
https://stackoverflow.com/ques... 

Date only from TextBoxFor()

...to the Html.EditorFor() helper. So this textbox now formats correctly, but doesn't launch a datepicker when clicked. So its fixed one thing and broken another. – Aaron Feb 17 '11 at 0:05 ...
https://stackoverflow.com/ques... 

How to determine if a number is odd in JavaScript

... You can also do return !!(num % 2) to get a boolean – Duncan Jan 30 '16 at 14:00 ...
https://stackoverflow.com/ques... 

Change a Django form field to a hidden field

...e in your form class, the widget overriding in the form is the good way to do it. Bu if you manage your form rendering into your template, indeed, this solution is much more clear/clean. – christophe31 Aug 28 '19 at 14:00 ...
https://stackoverflow.com/ques... 

Add alternating row color to SQL Server Reporting services report

How do you shade alternating rows in a SQL Server Reporting Services report? 18 Answers ...
https://stackoverflow.com/ques... 

Practicing BDD with python [closed]

... Ian Bicking recommends using doctest for behavior driven design: I personally tend to use nose and voidspace mock in a behavior driven design style. Specifically, the spec plugin for nose is excellent for BDD. ...
https://stackoverflow.com/ques... 

Can you have if-then-else logic in SQL? [duplicate]

I need to do select data from a table based on some kind of priority like so: 7 Answers ...