大约有 30,000 项符合查询结果（耗时：0.0501秒） [XML]
Query an XDocument for elements by name at any depth
...
using System.Xml.Linq;
class Test
{
static void Main()
{
string xml = @"
<root>
<child id='1'/>
<child id='2'>
<grandchild id='3' />
<grandchild id='4' />
</child>
</root>";
XDocument doc = XDocument.Parse(xml);
...
How do I install pip on macOS or OS X?
...
An extra warning: don't run this when a homebrew based python installed and occurs earlier in PATH (e.g. when you change /etc/paths): it would install pip with root credentials for the wrong python
– acidju...
Should methods in a Java interface be declared with or without a public access modifier?
... be omitted in Java interfaces (in my opinion).
Since it does not add any extra information, it just draws attention away from the important stuff.
Most style-guides will recommend that you leave it out, but of course, the most important thing is to be consistent across your codebase, and especial...
How can I use inverse or negative wildcards when pattern matching in a unix/linux shell?
...s) <(ls *Music*)
comm is preferable over diff because it doesn't have extra cruft.
This returns all elements of set 1, ls, that are not also in set 2, ls *Music*. This requires both sets to be in sorted order to work properly. No problem for ls and glob expansion, but if you're using something...
ASP.NET MVC ambiguous action methods
...ionResult MyMethod(int someInt) { /* ... */ }
public ActionResult MyMethod(string someString) { /* ... */ }
However, it does support method overloading based on attribute:
[RequireRequestValue("someInt")]
public ActionResult MyMethod(int someInt) { /* ... */ }
[RequireRequestValue("someString")]...
multi-layer perceptron (MLP) architecture: criteria for choosing number of hidden layers and size of
..., err on the side of more nodes
in the hidden layer.
Why? First, a few extra nodes in the hidden layer isn't likely do any any harm--your MLP will still converge. On the other hand, too few nodes in the hidden layer can prevent convergence. Think of it this way, additional nodes provides some ex...
Synchronous request in Node.js
... works. I've tried other examples here and was stumped when there was much extra setup to do or installs didn't work!
Notes:
The example that sync-request uses doesn't play nice when you use res.getBody(), all get body does is accept an encoding and convert the response data. Just do res.body.toStri...
returning in the middle of a using block
... is working:
private class TestClass : IDisposable
{
private readonly string id;
public TestClass(string id)
{
Console.WriteLine("'{0}' is created.", id);
this.id = id;
}
public void Dispose()
{
Console.WriteLine("'{0}' is disposed.", id);
}
public over...
How to set a Fragment tag by code?
I haven't found something like setTag(String tagName) method in the Fragment class. The only way to set a Fragment tag that I have found is by doing a FragmentTransaction and passing a tag name as parameter.
...
Why is the shovel operator (
... += 'quux'
a.object_id #=> 2154742560
So << alters the original string rather than creating a new one. The reason for this is that in ruby a += b is syntactic shorthand for a = a + b (the same goes for the other <op>= operators) which is an assignment. On the other hand << is ...