大约有 46,000 项符合查询结果（耗时：0.0438秒） [XML]
What do all of Scala's symbolic operators mean?
...mbols
Automatically imported methods
Common methods
Syntactic sugars/composition
It is fortunate, then, that most categories are represented in the question:
-> // Automatically imported method
||= // Syntactic sugar
++= // Syntactic sugar/composition or common method
<= // Common...
StringBuilder vs String concatenation in toString() in Java
...
Version 1 is preferable because it is shorter and the compiler will in fact turn it into version 2 - no performance difference whatsoever.
More importantly given we have only 3
properties it might not make a
difference, but at what point do you
sw...
How to get a reference to current module's attributes in Python
... current module (inside a
function or method, this is the module
where it is defined, not the module
from which it is called).
http://docs.python.org/library/functions.html#globals
share
|
i...
How can i query for null values in entity framework?
...thing.Equals(value)
select entry;
Workaround for Linq-to-Entities (ouch!):
var result = from entry in table
where (value == null ? entry.something == null : entry.something == value)
select entry;
This is a nasty bug which has bitten me several times. If ...
How can I handle time zones in my webapp?
... storing timestamps is simple: Store them in UTC.
As for displaying them, it would make sense to take the device's timezone setting and use that as the current timezone. That said, there should be a timezone dropdown next to the "time input" box, which defaults to the device's current timezone, so ...
How to identify platform/compiler from preprocessor macros?
I'm writing a cross-platform code, which should compile at linux, windows, Mac OS. On windows, I must support visual studio and mingw.
...
What do I use for a max-heap implementation in Python?
...
It's also the standard solution.
– Andrew McGregor
Mar 23 '10 at 16:30
48
...
Why prefer two's complement over sign-and-magnitude for signed numbers?
...n order to represent -1 in binary, two's complement is used: flipping the bits and adding 1?
18 Answers
...
Does Python have “private” variables in classes?
...
It's cultural. In Python, you don't write to other classes' instance or class variables. In Java, nothing prevents you from doing the same if you really want to - after all, you can always edit the source of the class itsel...
Reference — What does this symbol mean in PHP?
... that come up every now and then about syntax in PHP. This is also a Community Wiki, so everyone is invited to participate in maintaining this list.
...