大约有 44,500 项符合查询结果（耗时：0.0452秒） [XML]
Using a bitmask in C#
... enum:
[Flags]
public enum Names
{
None = 0,
Susan = 1,
Bob = 2,
Karen = 4
}
Then you'd check for a particular name as follows:
Names names = Names.Susan | Names.Bob;
// evaluates to true
bool susanIsIncluded = (names & Names.Susan) != Names.None;
// evaluates to false
bool...
The SQL OVER() clause - when and why is it useful?
...
answered Jun 2 '11 at 19:54
Andriy MAndriy M
69.3k1616 gold badges8484 silver badges139139 bronze badges
...
How do I get the last character of a string?
...
244
The code:
public class Test {
public static void main(String args[]) {
String str...
How to create a GUID/UUID in Python
...
829
The uuid module, in Python 2.5 and up, provides RFC compliant UUID
generation. See the mo...
What does enumerate() mean?
...t, elem in enumerate(elements):
... print count, elem
...
0 foo
1 bar
2 baz
By default, enumerate() starts counting at 0 but if you give it a second integer argument, it'll start from that number instead:
>>> for count, elem in enumerate(elements, 42):
... print count, elem
... ...
Mercurial move changes to a new branch
...e rebase extension. Suppose you have a history like this:
@ changeset: 2:81b92083cb1d
| tag: tip
| summary: my new feature: edit file a
|
o changeset: 1:8bdc4508ac7b
| summary: my new feature: add file b
|
o changeset: 0:d554afd54164
summary: initial
This means,...
Best way to handle list.index(might-not-exist) in python?
...
12 Answers
12
Active
...
In CSS what is the difference between “.” and “#” when declaring a set of styles?
...
answered Mar 2 '09 at 12:38
Paul DixonPaul Dixon
270k4545 gold badges298298 silver badges328328 bronze badges
...
overlay two images in android to set an imageview
...
235
You can skip the complex Canvas manipulation and do this entirely with Drawables, using LayerD...
“Could not run curl-config: [Errno 2] No such file or directory” when installing pycurl
...
Boris
4,70255 gold badges4242 silver badges5252 bronze badges
answered Jun 5 '14 at 3:14
Michael RiceMichael Ri...