大约有 40,000 项符合查询结果（耗时：0.0598秒） [XML]
Why does datetime.datetime.utcnow() not contain timezone information?
...
you can give it a timezone like this
import pytz # 3rd party: $ pip install pytz
u = datetime.utcnow()
u = u.replace(tzinfo=pytz.utc) #NOTE: it works only with a fixed utc offset
now you can change timezones
print(u.astimezone(pytz.timezone("America/New_York")))
To get the current time in a...
Procedure expects parameter which was not supplied
...easy. Thank you. I knew the parameter existed and wasn't null and this was all it took.
– BornToDoStuff
Nov 8 '19 at 21:57
|
show 2 more com...
Datatable vs Dataset
...
It really depends on the sort of data you're bringing back. Since a DataSet is (in effect) just a collection of DataTable objects, you can return multiple distinct sets of data into a single, and therefore more manageable, object...
Difference between using bean id and name in Spring configuration file
...ference, 3.2.3.1 Naming Beans:
Every bean has one or more ids (also
called identifiers, or names; these
terms refer to the same thing). These
ids must be unique within the
container the bean is hosted in. A
bean will almost always have only one
id, but if a bean has more than one
i...
Ruby: Change negative number to positive number?
...
abs returns an absolute value. If that's all you want, as the OP does, it's fine. But what if you need to go back and forth?
– absynthe minded web smith
Mar 21 '18 at 3:45
...
How to assertThat something is null with Hamcrest?
...
+1 I generally prefer Hamscrest assertions but this is one case where the Junit assertion is just more readable, IMO.
– spaaarky21
Oct 31 '14 at 18:16
...
C++ Object Instantiation
...
On the contrary, you should always prefer stack allocations, to the extent that as a rule of thumb, you should never have new/delete in your user code.
As you say, when the variable is declared on the stack, its destructor is automatically called when it goes out of scope...
Selecting the first “n” items with jQuery
... items from the page, for example the first 20 links instead of selecting all of them with the usual
6 Answers
...
What does the term “porcelain” mean in Git?
The term "porcelain" appears occasionally in the Git documentation. What does it mean?
9 Answers
...
JavaScript check if variable exists (is defined/initialized)
...
You want the typeof operator. Specifically:
if (typeof variable !== 'undefined') {
// the variable is defined
}
share
|
improve this answer
|
...