大约有 42,000 项符合查询结果(耗时:0.0672秒) [XML]
Is Using .NET 4.0 Tuples in my C# Code a Poor Design Decision?
...
Tuples are great if you control both creating and using them - you can maintain context, which is essential to understanding them.
On a public API, however, they are less effective. The consumer (not you) has to either guess or look up documentation, especially for thin...
Spring @Autowired usage
What are the pros and cons of using @Autowired in a class that will be wired up by Spring?
9 Answers
...
CSS: 100% width or height while keeping aspect ratio?
Currently, with STYLE, I can use width: 100% and auto on the height (or vice versa), but I still can't constrain the image into a specific position, either being too wide or too tall, respectively.
...
Why does auto a=1; compile in C?
... old C keyword that means "local scope". auto a is the same as auto int a, and because local scope is the default for a variable declared inside a function, it's also the same as int a in this example.
This keyword is actually a leftover from C's predecessor B, where there were no base types: every...
What is aspect-oriented programming?
I understand object oriented programming, and have been writing OO programs for a long time. People seem to talk about aspect-oriented programming, but I've never really learned what it is or how to use it. What is the basic paradigm?
...
Why aren't superclass __init__ methods automatically invoked?
...methods of their superclasses, as in some other languages? Is the Pythonic and recommended idiom really like the following?
...
What is an existential type?
... type parameter. Second, invert control (this effectively swaps the "you" and "I" part in the definitions above, which is the primary difference between existentials and universals).
// A wrapper that hides the type parameter 'B'
interface VMWrapper {
void unwrap(VMHandler handler);
}
// A cal...
How can I resize an image dynamically with CSS as the browser width/height changes?
...
This can be done with pure CSS and does not even require media queries.
To make the images flexible, simply add max-width:100% and height:auto. Image max-width:100% and height:auto works in IE7, but not in IE8 (yes, another weird IE bug). To fix this, you...
What it the significance of the Javascript constructor property?
Trying to bend by head around Javascript's take on OO...and, like many others, running into confusion about the constructor property. In particular, the significance of the constructor property, as I can't seem to make it have any effect. E.g.:
...
What is the difference between a var and val definition in Scala?
What is the difference between a var and val definition in Scala and why does the language need both? Why would you choose a val over a var and vice versa?
...