大约有 40,000 项符合查询结果（耗时：0.0541秒） [XML]
What are some compelling use cases for dependent method types?
....local) && (hash == r.hash)
}
override def create : Resource = new RemoteFile
}
It's an example of the classic cake pattern: we have a family of abstractions which are gradually refined through a heirarchy (ResourceManager/Resource are refined by FileManager/File which are in turn refi...
How to prevent browser page caching in Rails
... need to unconditionally clear the cache, because the browser won't make a new request just to see if this time, it needs to reload, even though it didn't need to last time.
Example:
before_filter :reset_cache, if: :user_completed_demographics?
won't work to prevent users from coming back after ...
Cast a Double Variable to Decimal
...345D;
decimal dec = (decimal) dbl;
You should use the M when declaring a new literal decimal value:
decimal dec = 123.45M;
(Without the M, 123.45 is treated as a double and will not compile.)
share
|
...
PHP equivalent of .NET/Java's toString()
...oString()
{
return 'Ninety nine green bottles';
}
}
$ex = new Bottles;
var_dump($ex, (string) $ex);
// Returns: instance of Bottles and "Ninety nine green bottles"
Some more type casting examples:
$i = 1;
// int 1
var_dump((int) $i);
// bool true
var_dump((bool) $i);
// string...
Preferred way of loading resources in Java
...ce(String resource) {
final List<ClassLoader> classLoaders = new ArrayList<ClassLoader>();
classLoaders.add(Thread.currentThread().getContextClassLoader());
classLoaders.add(ResourceLoader.class.getClassLoader());
for (ClassLoader classLoader : classLoade...
git - Server host key not cached
...ge is referring to. In my case when I cloned I had used a FQDN, but on my new machine I had only logged in using the short local domain name. I had to login via putty or plink as the FQDN to cache the key for the host name on the origin. It can help to cross check the hostname being used as the r...
How do I insert a linebreak where the cursor is without entering into insert mode in Vim?
...roperly. If not, then use sEnterTabEsc instead to replace the space with a newline, indent the line, and exit insert mode. You would have to replace the second space with a different command so you couldn't use '.' in this case.
...
How to increase the vertical split window size in Vim
...split the Vim viewport vertically. :30vs splits the viewport, making the new window 30 characters wide. Once this 30 char window is created, how would one change it's size to 31 or 29?
...
获取文件系统映像及恢复删除的数据（FAT文件系统格式描述） - C/C++ - 清泛...
...ile (path,
GENERIC_WRITE,
0,
0,
CREATE_NEW,
FILE _ATTRIBUTE_NORMAL,
0);
DiskGeometry diskGeometry = devices.at(driveIndex).diskGeometry;
DWORD dwRead = 0;
DWORD dwMb = (1024*1024);
LARGE_INTEGER liFullSize = {0,0};
LAR...
Why doesn't C# support the return of references?
... Y { get; set; }
}
and now create an array of that struct:
var points = new Point[10];
points[0].X = 1;
points[0].Y = 2;
In this case points[0], the array indexer, is returning a reference to struct. It is impossible to write your own indexer (for example for a custom collection), that has thi...