大约有 44,000 项符合查询结果（耗时：0.0687秒） [XML]
django MultiValueDictKeyError error, how do I deal with it
...
Use the MultiValueDict's get method. This is also present on standard dicts and is a way to fetch a value while providing a default if it does not exist.
is_private = request.POST.get('is_private', False)
Generally,
my_var = dict.get(<key>, <default>)
...
Static fields on a null reference in Java
...ase, Primary = main.getNull():
The Primary expression is evaluated, and the result is discarded. [...]
If the field is a non-blank final field, then the result is the value of the specified class variable in the class or interface that is the type of the Primary expression. [...]
...
How can I install MacVim on OS X?
...vim
Step 4. Run brew link macvim
You now have the latest versions of vim and macvim managed by brew. Run brew update && brew upgrade every once in a while to upgrade them.
This includes the installation of the CLI mvim and the mac application (which both point to the same thing).
I use t...
Difference between jQuery’s .hide() and setting CSS to display: none
...er than writing out .css("display", "none") , but what’s the difference and what are both of them actually doing to the HTML element?
...
Merge changes from remote github repository to your local repository
I have forked a repository on github some time ago, made a small change and pushed the change back to my github fork. The original repository has changed since. I would like to merge the changes from the original repository to my fork.
...
Rails 3: “field-with-errors” wrapper changes the page appearance. How to avoid this?
...
One little question: Why both the label and the input are wrapped ? How Rails decide what to wrap ?
– Misha Moroshko
Mar 11 '11 at 2:03
...
Spring MVC @PathVariable with dot (.) is getting truncated
... I don't like this fix; since it is needed at all the url which has to be handled in my application... and future URL implementation also to be taken care of this...
– Kanagavelu Sugumar
May 2 '13 at 8:35
...
In tmux can I resize a pane to an absolute value
...
The -x and -y options for resize-pane were introduced in tmux 1.8.
– Chris Johnsen
Apr 23 '13 at 6:10
...
Get a list of all threads currently running in Java
...de worse for the sake of efficiency. If you have an efficiency requirement and an infrastructure to measure efficiency quantitatively, then I'm ok with people making code worse, because they seem to know what they're doing. See the root of all evil according to Donald Knuth.
– ...
Where should virtualenvs be created?
...ich keeps all virtualenvs in the same place (the ~/.virtualenvs directory) and allows shortcuts for creating and keeping them there. For example, you might do:
mkvirtualenv djangoproject
and then later:
workon djangoproject
It's probably a bad idea to keep the virtualenv directory in the proje...