大约有 47,000 项符合查询结果（耗时：0.0406秒） [XML]
Do try/catch blocks hurt performance when exceptions are not thrown?
...
Check it.
static public void Main(string[] args)
{
Stopwatch w = new Stopwatch();
double d = 0;
w.Start();
for (int i = 0; i < 10000000; i++)
{
try
{
d = Math.Sin(1);
}
catch (Exception ex)
...
ASP.NET MVC 404 Error Handling [duplicate]
...ng the user with overall look and feel of the rest of the site without any extra work.
– Dimskiy
Jan 27 '11 at 16:47
7
...
Get Android Phone Model programmatically
...evice name:
/** Returns the consumer friendly device name */
public static String getDeviceName() {
String manufacturer = Build.MANUFACTURER;
String model = Build.MODEL;
if (model.startsWith(manufacturer)) {
return capitalize(model);
}
return capitalize(manufacturer) + " " + model;
}
...
What is the most pythonic way to check if an object is a number?
...vector or a number is comparing apples to oranges - I can have a vector of strings or numbers, and I can have a single string or single number. You are interested in how many you have (1 or more), not what type you actually have.
my solution for this problem is to check whether the input is a singl...
Why does Clojure have “keywords” in addition to “symbols”?
... and global vars...
Keywords are generally used as lightweight "constant strings", e.g. for the keys of a hash-map or the dispatch values of a multimethod. Symbols are generally used to name variable and functions and it's less common to manipulate them as objects directly except in macros and su...
How can I get all the request headers in Django?
...rip will strip out all leading characters that match any characters in the string you give it, so if you have a header "HTTP_TOKEN_ID" it will give back "OKEN_ID", because the "T" at the beginning of "TOKEN" matches a character in the string passed to lstrip. The way to do it is prefix = 'HTTP_'; h...
Cleaner way to update nested structures
...nt = 3, superMode: Boolean = false)
scala> @zip case class Game(state: String = "pause", pacman: Pacman = Pacman())
scala> val g = Game()
g: Game = Game("pause",Pacman(3,false))
// Changing the game state to "run" is simple using the copy method:
scala> val g1 = g.copy(state = "run")
g...
Is it possible to print a variable's type in standard C++?
...havior.
What I'm recommending below is:
template <typename T> std::string type_name();
which would be used like this:
const int ci = 0;
std::cout << type_name<decltype(ci)>() << '\n';
and for me outputs:
int const
<disclaimer> I have not tested this on MSVC. &...
Python __str__ versus __unicode__
...ck with them for compatibility reasons. Generally, you should put all your string formatting in __unicode__(), and create a stub __str__() method:
def __str__(self):
return unicode(self).encode('utf-8')
In 3.0, str contains characters, so the same methods are named __bytes__() and __str__(). ...
Can someone explain Microsoft Unity?
...f Dependency Injection in ASP.NET Web API 2
public interface IShape
{
string Name { get; set; }
}
public class NoShape : IShape
{
public string Name { get; set; } = "I have No Shape";
}
public class Circle : IShape
{
public string Name { get; set; } = "Circle";
}
public class Rectang...