大约有 11,400 项符合查询结果（耗时：0.0265秒） [XML]
Python circular importing?
...
I think the answer by jpmc26, while by no means wrong, comes down too heavily on circular imports. They can work just fine, if you set them up correctly.
The easiest way to do so is to use import my_module syntax, rather than from my_module im...
Unpack a list in Python?
I think 'unpack' might be the wrong vocabulary here - apologies because I'm sure this is a duplicate question.
3 Answers
...
When to add what indexes in a table in Rails
I have a question about Rails database.
3 Answers
3
...
Node.js create folder or use existing
...m install mkdirp
Use it to run function that requires the directory. Callback is called after path is created or if path did already exists. Error err is set if mkdirp failed to create directory path.
var mkdirp = require('mkdirp');
mkdirp('/tmp/some/path/foo', function(err) {
// path exist...
Iterate two Lists or Arrays with one ForEach statement in C#
...
This is known as a Zip operation and will be supported in .NET 4.
With that, you would be able to write something like:
var numbers = new [] { 1, 2, 3, 4 };
var words = new [] { "one", "two", "three", "four" };
var numbersAndWords = numbers.Zip(words, (n, w) =>...
In Scala how do I remove duplicates from a list?
... for Seq,
scala> dirty.distinct
res0: List[java.lang.String] = List(a, b, c)
Update. Others have suggested using Set rather than List. That's fine, but be aware that by default, the Set interface doesn't preserve element order. You may want to use a Set implementation that explicitly does pres...
Run all SQL files in a directory
I have a number of .sql files which I have to run in order to apply changes made by other developers on an SQL Server 2005 database.
The files are named according to the following pattern:
...
Ruby optional parameters
If I define a Ruby functions like this:
8 Answers
8
...
How do I call a dynamically-named method in Javascript?
I am working on dynamically creating some JavaScript that will be inserted into a web page as it's being constructed.
9 An...
iPhone Safari Web App opens links in new window
I have problem with web after adding icon to Home Screen. If the web is launched from Home Screen, all links will open in new window in Safari (and lose full screen functionality). How can I prevent it? I couldn't find any help, only the same unanswered question.
...