大约有 44,000 项符合查询结果（耗时：0.0532秒） [XML]
Python: Why is functools.partial necessary?
...s rather, in a sense, the setting of defaults):
>>> f('23', base=10)
23
So, as you see, it's definely not as simplistic as lambda s: int(s, base=2)!-)
Yes, you could contort your lambda to give you some of this – e.g., for the keyword-overriding,
>>> f = lambda s, **k: int(s...
How to create local notifications?
...otificationDefaultSoundName;
notification.applicationIconBadgeNumber = 10;
[[UIApplication sharedApplication] scheduleLocalNotification:notification];
}
The above code display an AlertView after time interval of 7 seconds when pressed on button that binds startLocalNotification If app...
MySQL Removing Some Foreign keys
...
10
Check what's the CONSTRAINT name and the FOREIGN KEY name:
SHOW CREATE TABLE table_name;
Rem...
Why does SSL handshake give 'Could not generate DH keypair' exception?
...roblem is the prime size. The maximum-acceptable size that Java accepts is 1024 bits. This is a known issue (see JDK-6521495).
The bug report that I linked to mentions a workaround using BouncyCastle's JCE implementation. Hopefully that should work for you.
UPDATE
This was reported as bug JDK-70...
SQlite Getting nearest locations (with latitude and longitude)
... double range, double bearing)
{
double EarthRadius = 6371000; // m
double latA = Math.toRadians(point.x);
double lonA = Math.toRadians(point.y);
double angularDistance = range / EarthRadius;
double trueCourse = Math.toRadians(bearing);
dou...
How to avoid having class data shared among instances?
...
You want this:
class a:
def __init__(self):
self.list = []
Declaring the variables inside the class declaration makes them "class" members and not instance members. Declaring them inside the __init__ method makes sure that a new instance of th...
Detecting endianness programmatically in a C++ program
...oid)
{
union {
uint32_t i;
char c[4];
} bint = {0x01020304};
return bint.c[0] == 1;
}
The principle is equivalent to the type case as suggested by others, but this is clearer - and according to C99, is guaranteed to be correct. gcc prefers this compared to the direct ...
How do I unit test web api action method when it returns IHttpActionResult?
... returns: NotFound()
IHttpActionResult actionResult = valuesController.Get(10);
Assert.IsType<NotFoundResult>(actionResult);
// if your action returns: Ok()
actionResult = valuesController.Get(11);
Assert.IsType<OkResult>(actionResult);
// if your action was returning data in the body ...
Ignoring time zones altogether in Rails and PostgreSQL
... one.
– Basil Bourque
Feb 15 '14 at 10:04
4
@ErwinBrandstetter This is a great answer, except for...
Why is Python running my module when I import it, and how do I stop it?
...is:
# stuff to run always here such as class/def
def main():
pass
if __name__ == "__main__":
# stuff only to run when not called via 'import' here
main()
See What is if __name__ == "__main__" for?
It does require source control over the module being imported, however.
Happy coding.
...