大约有 10,000 项符合查询结果(耗时:0.0299秒) [XML]

https://stackoverflow.com/ques... 

What is the equivalent of “none” in django templates?

... Any idea how to use this with other filters such as date? For example, is it possible to display "N/A" if a date is none but otherwise format it? Like: {{ post.pub_date|default_if_none:"N/A"|date:"Y-m-d" }}? ...
https://stackoverflow.com/ques... 

How do I copy a hash in Ruby?

...faced similar issues in duplicating a hash. Use the following. I've got no idea about the speed of this method. copy_of_original_hash = Hash.new.merge(original_hash) share | improve this answer ...
https://stackoverflow.com/ques... 

Android: Clear Activity Stack

... As this flag was first introduced in Honeycomb I have no idea what implication it might have on earlier versions. So, this was me being precaucios. But I guess removal of the conditial shouldn't be a problem. – whlk Jul 6 '13 at 18:16 ...
https://stackoverflow.com/ques... 

What are the differences between git branch, fork, fetch, merge, rebase and clone?

...ientists/ A fork isn't a Git concept really, it's more a political/social idea. That is, if some people aren't happy with the way a project is going, they can take the source code and work on it themselves separate from the original developers. That would be considered a fork. Git makes forking ...
https://stackoverflow.com/ques... 

How to embed a SWF file in an HTML page?

... SWFObject is good. It simply works. An even more wonderful idea is to use a Content Delivery Network to get the javascript. I use Google's ajax.googleapis.com/ajax/libs/swfobject/2.2/swfobject.js – Ardee Aram Apr 1 '11 at 2:12 ...
https://stackoverflow.com/ques... 

Sublime Text from Command Line

... Another idea would be to include C:\Program Files\Sublime Text 2\ in your PATH, and then run an administrator command prompt: cd "C:\Program Files\Sublime Text 2\" mklink sublime.exe sublime_text.exe That will make a symbolic link...
https://stackoverflow.com/ques... 

How to use UIVisualEffectView to Blur Image?

...h removeFromSuperView after i dismiss it but i get the same result.... any ideas? – George Asda Nov 19 '14 at 17:39 @G...
https://stackoverflow.com/ques... 

How do you count the number of occurrences of a certain substring in a SQL varchar?

... don't need to use asterisks. Any two-character replacement will do. The idea is that you lengthen the string by one character for each instance of the character you're counting, then subtract the length of the original. It's basically the opposite method of the original answer which doesn't come...
https://stackoverflow.com/ques... 

using href links inside tag

...oard shortcuts for links and form elements. If you still cannot drop the idea of a select don’t use the onchange handler at least. This is a real pain for keyboard users, it makes your third item nearly inaccessible. sha...
https://stackoverflow.com/ques... 

Google Chrome form autofill and its yellow background

... great idea. I wouldl stick with 50 or 100 whenever sufficent (regular size input boxes) to avoid potential performance hits on weaker devices. (And no need for px after 0) – Frank Nocke Jan 2 ...