大约有 49,000 项符合查询结果（耗时：0.0715秒） [XML]
Lock Android phone application to Portrait mode
...
Yes. Add android:screenOrientation="portrait" to the manifest under your main activity.
<activity android:name=".yourActivity" android:screenOrientation="portrait"... />
...
plot a circle with pyplot
...rcle with matplotlib.pyplot (please no pylab) taking as input center (x,y) and radius r. I tried some variants of this:
9 A...
LINQ's Distinct() on a particular property
... is a "distinct-by" effectively. I don't believe it's part of LINQ as it stands, although it's fairly easy to write:
public static IEnumerable<TSource> DistinctBy<TSource, TKey>
(this IEnumerable<TSource> source, Func<TSource, TKey> keySelector)
{
HashSet<TKey>...
Where could I buy a valid SSL certificate? [closed]
...o beat. A certificate says to the client that you are who you say you are, and the issuer has verified that to be true.
You can get a free SSL certificate signed, for example, by StartSSL. This is an improvement on self-signed certificates, because your end-users would stop getting warning pop-ups ...
How to count the frequency of the elements in an unordered list?
...
@unutbu: What if I have three lists, a,b,c for which a and b remain the same, but c changes? How to count the the value of c for which a and c are same?
– Srivatsan
Jun 29 '14 at 12:31
...
How to vertical align an inline-block in a line of text?
I want to create an inline-block that will take on some unknown width and height. (It'll have a table inside it with content dynamically generated). Further, the inline-block should be placed inside a line of text, such as "my text (BLOCK HERE)". To make it look pretty, I'm trying to make the blo...
How can I count the number of matches for a regex?
...r Java 9+
long matches = matcher.results().count();
Solution for Java 8 and older
You'll have to do the following. (Starting from Java 9, there is a nicer solution)
int count = 0;
while (matcher.find())
count++;
Btw, matcher.groupCount() is something completely different.
Complete exampl...
Are std::vector elements guaranteed to be contiguous?
...
This was missed from C++98 standard proper but later added as part of a TR. The forthcoming C++0x standard will of course contain this as a requirement.
From n2798 (draft of C++0x):
23.2.6 Class template vector [vector]
1 A vector is a sequence...
Using async/await for multiple tasks
....Select(i => DoSomething(1, i, blogClient)).ToArray());
On the other hand, the above code with WaitAll also blocks the threads and your threads won't be free to process any other work till the operation ends.
Recommended Approach
I would prefer WhenAll which will perform your operations asyn...
Implementing INotifyPropertyChanged - does a better way exist?
...ropertyChanged
{
// boiler-plate
public event PropertyChangedEventHandler PropertyChanged;
protected virtual void OnPropertyChanged(string propertyName)
{
PropertyChangedEventHandler handler = PropertyChanged;
if (handler != null) handler(this, new PropertyChangedEven...