大约有 47,000 项符合查询结果(耗时:0.0501秒) [XML]
How to pass object with NSNotificationCenter
...cation:(NSNotification*)notification
{
if ([notification.name isEqualToString:@"TestNotification"])
{
NSDictionary* userInfo = notification.userInfo;
NSNumber* total = (NSNumber*)userInfo[@"total"];
NSLog (@"Successfully received test notification! %i", total.intValue...
How to do SELECT COUNT(*) GROUP BY and ORDER BY in Django?
...by, generating a queryset of authors, add the annotation (this will add an extra field to the returned values) and finally, you order them by this value
Refer to https://docs.djangoproject.com/en/dev/topics/db/aggregation/ for more insight
Good to note: if using Count, the value passed to Count does...
Can modules have properties the same way that objects can?
...s? When I put this code in one file x.py and import it from another, then calling x.y results in AttributeError: 'NoneType' object has no attribute 'c', since _M somehow has value None...
– Stephan202
May 19 '09 at 1:35
...
How do you merge two Git repositories?
...act.
You should treat this like a usual file move commit: you will need an extra jump when reaching it.
# finishes with all files added at once commit
git log rails/README.md
# then continue from original tree
git log <rev> -- README.md
There are more complex solutions like doing this manu...
Changing Ctrl + Tab behavior for moving between documents in Visual Studio
...useless to me. I already know which tab I need to get to, I don't want the extra thought required to remember if I went to some other tab recently or not.
– Clonkex
Aug 29 at 3:22
...
Creating a constant Dictionary in C#
...fficient way to create a constant (never changes at runtime) mapping of string s to int s?
10 Answers
...
Best way to create an empty object in JSON with PHP?
...
Well, json_encode() simply returns a string from a PHP array/object/etc. You can achieve the same effect much more efficiently by doing:
$json = '{}';
There's really no point in using a function to accomplish this.
UPDATE
As per your comment updates, you cou...
How to get number of entries in a Lua table?
...ual, any of 3, 5 and 9 are valid results for #t. According to the manual, calling # on non-sequences is undefined. That means that any result (-1, 3, 3.14, 5, 9) is valid.
– cubuspl42
May 12 '14 at 20:08
...
How Many Seconds Between Two Dates?
... you're correct so I deleted my comment.. one of my "dates" was actually a string. This works perfectly.
– user3344977
Oct 11 '16 at 21:42
add a comment
| ...
Can't pickle when using multiprocessing Pool.map()
...nsider it "easy" or not;-) is to add the infrastructure to your program to allow such methods to be pickled, registering it with the copy_reg standard library method.
For example, Steven Bethard's contribution to this thread (towards the end of the thread) shows one perfectly workable approach to a...
