大约有 9,000 项符合查询结果（耗时：0.0411秒） [XML]
Why can't the tag contain a tag inside it?
... http://www.w3.org/TR/html4/sgml/dtd.html. It specifies which elements are block elements and which are inline. For those lists, search for the section marked "HTML content models".
For the P element, it specifies the following, which indicates that P elements are only allowed to contain inline ele...
File I/O in Every Programming Language [closed]
...n Python 3?.
What is this with statement?
The with statement starts a code block where you can use the variable f as a stream object returned from the call to open().
When the with block ends, python calls f.close() automatically.
This guarantees the file will be closed when you exit the with block...
What are the new documentation commands available in Xcode 5? [closed]
...ram text
*/
- (void)myMethod {}
Notes:
The commands must be in a /** block */, /*! block */, or prefixed with /// or //!.
The commands work with the @ (headerdoc style) or the \ (doxygen style) prefix. (I.e. @b and \b both do the same thing.)
The commands usually come before the item they are ...
How to apply a CSS filter to a background image
... {
position: fixed;
left: 0;
right: 0;
z-index: 1;
display: block;
background-image: url('https://i.imgur.com/lL6tQfy.png');
width: 1200px;
height: 800px;
-webkit-filter: blur(5px);
-moz-filter: blur(5px);
-o-filter: blur(5px);
-ms-filter: blur(5px);
filter: bl...
C# switch statement limitations - why?
...ant
That the values of switch labels are distinct (so that only one switch block can be selected for a given switch-expression)
Consider this code example in the hypothetical case that non-constant case values were allowed:
void DoIt()
{
String foo = "bar";
Switch(foo, foo);
}
void Switc...
Choosing a Java Web Framework now? [closed]
...ve it a shot. I really like it, Play is a great fit between something like PHP and the heavy duty Java frameworks like Spring.
The things I like most about play are:
Very easy to get a play application off the ground, you have to go pretty far with coding and configuration to get a simple crud ap...
SVN: Is there a way to mark a file as “do not commit”?
...e mentioned: $svn st --- Changelist 'ignore-on-commit': M database.php M config.php and still, they have been sent to the repo on commit. Any idea what did I do wrong?
– Attila Fulop
Feb 13 '12 at 17:02
...
C# version of java's synchronized keyword?
...Something() and thread 2 calls instance2.DoSomething, the second call will block even though it is a completely different object. thread2's call shouldn't block unless someone is calling DoSomething on the same object. Not saying you are wrong, but saying it is important to understand the effect o...
Can I disable autolayout for a specific subview at runtime?
... have to always
// guard against strong-reference cycles
- (void)resizeWithBlock:(void (^)(UIView *view))block;
@end
UIView+DisableAutolayoutTemporarily.m
#import "UIView+DisableAutoResizeTemporarily.h"
@implementation UIView (DisableAutoResizeTemporarily)
- (void)resizeWithBlock:(void (^)(UIVi...
iPad/iPhone hover problem causes the user to double click a link
...ing to display on mouse over:
Here is an example CSS and HTML - a product block with a starred label on mouse over:
HTML:
<a href="#" class="s"><span class="s-star"></span>Some text here</a>
CSS:
.s {
background: url(some-image.png) no-repeat 0 0;
}
.s:hover {
ba...