大约有 46,000 项符合查询结果（耗时：0.0524秒） [XML]
Is there a way to 'uniq' by column?
...
answered Dec 16 '09 at 16:14
Carl SmotriczCarl Smotricz
60.9k1717 gold badges115115 silver badges160160 bronze badges
...
How to create an object for a Django model with a many to many field?
...
For future visitors, you can create an object and all of its m2m objects in 2 queries using the new bulk_create in django 1.4. Note that this is only usable if you don't require any pre or post-processing on the data with save() methods or signals. What you insert is exactly...
How can I split and parse a string in Python?
...
NPENPE
416k8181 gold badges858858 silver badges949949 bronze badges
a...
What is the python keyword “with” used for? [duplicate]
...
|
edited Feb 11 '16 at 20:13
Mr. Bultitude
11388 bronze badges
answered Aug 2 '12 at 18:33
...
How can I mock dependencies for unit testing in RequireJS?
...'log');
yourModule.foo();
expect(console.log).toHasBeenCalledWith('hurp');
})
});
});
})();
So I'm using this approach in production for a while and its really robust.
share
|
...
What is the printf format specifier for bool?
...sing a single char * to printf() is considered bad practice because it's really supposed to be a format string, and an unescaped percent sign might cause your program to blow up (see here for more). Thus, printf("%s", ...) is safer. If you're not doing any actual formatting to begin with, the printf...
When is std::weak_ptr useful?
...want to keep them in memory, so you hold a strong pointer to them. Periodically, you scan the cache and decide which objects have not been accessed recently. You don't need to keep those in memory, so you get rid of the strong pointer.
But what if that object is in use and some other code holds a s...
Where does PostgreSQL store the database?
...here the data directory is, use this query.
show data_directory;
To see all the run-time parameters, use
show all;
You can create tablespaces to store database objects in other parts of the filesystem. To see tablespaces, which might not be in that data directory, use this query.
SELECT * FRO...
What are 'closures' in .NET?
...
answered Jan 9 '09 at 16:04
Jon SkeetJon Skeet
1211k772772 gold badges85588558 silver badges88218821 bronze badges
...
Android Notification Sound
...n Codeding
String en_alert, th_alert, en_title, th_title, id;
int noti_all, noti_1, noti_2, noti_3, noti_4 = 0, Langage;
class method
Intent intent = new Intent(context, ReserveStatusActivity.class);
PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, intent, 0);
Notificati...