大约有 40,000 项符合查询结果（耗时：0.0542秒） [XML]
How to create a trie in Python
...
Unwind is essentially correct that there are many different ways to implement a trie; and for a large, scalable trie, nested dictionaries might become cumbersome -- or at least space inefficient. But since you're just getting started, I think...
What's the (hidden) cost of Scala's lazy val?
...ng [18]
29 putfield blevins.example.Something.foo : java.lang.String [20]
32 aload_0 [this]
33 aload_0 [this]
34 getfield blevins.example.Something.bitmap$0 : int [15]
37 iconst_1
38 ior
39 putfield blevins.example.Something.bitmap$0 : int [15]
42 getstatic scala.runtime.BoxedUnit.UNIT : sca...
How do I export UIImage array as a movie?
...riter has an input of type AVAssetWriterInput, which in turn has a method called appendSampleBuffer: that lets you add individual frames to a video stream. Essentially you’ll have to:
1) Wire the writer:
NSError *error = nil;
AVAssetWriter *videoWriter = [[AVAssetWriter alloc] initWithURL:
[...
A type for Date only in C# - why is there no Date type?
...
Allow me to add an update to this classic question:
Jon Skeet's Noda Time library is now quite mature, and has a date-only type called LocalDate. (Local in this case just means local to someone, not necessarily local to th...
Limit File Search Scope in Sublime Text 2
... showing that folder/** works too. :)
– try-catch-finally
May 21 '15 at 16:56
7
This doesn't seem...
How do you clone a Git repository into a specific folder?
...t/it/
mv /where/it/is/right/now/.* /where/I/want/it/
The first line grabs all normal files, the second line grabs dot-files. It is also possibe to do it in one line by enabling dotglob (i.e. shopt -s dotglob) but that is probably a bad solution if you are asking the question this answer answers.
Be...
StringBuilder vs String concatenation in toString() in Java
...o builder?
At the point where you're concatenating in a loop - that's usually when the compiler can't substitute StringBuilder by itself.
share
|
improve this answer
|
foll...
Explaining Python's '__enter__' and '__exit__'
...
Using these magic methods (__enter__, __exit__) allows you to implement objects which can be used easily with the with statement.
The idea is that it makes it easy to build code which needs some 'cleandown' code executed (think of it as a try-finally block). Some more ex...
Is there an equivalent to CTRL+C in IPython Notebook in Firefox to break cells that are running?
...errupt the entire iPython Notebook server. This will stop iPython Notebook alltogether, which means it won't be possible to restart or save your work, so this is obviously not a great solution (you need to hit CTRL+C twice because it's a safety feature so that people don't do it by accident). In cas...
android webview geolocation
...nts WebChromeClient.onGeolocationPermissionsShowPrompt(). This method
is called by the WebView to obtain permission to disclose the user's location to JavaScript. (In the case of the browser, we show a prompt to the user.) The default implementation does nothing, so permission is never obtained and...