大约有 40,000 项符合查询结果（耗时：0.0683秒） [XML]
How are virtual functions and vtable implemented?
We all know what virtual functions are in C++, but how are they implemented at a deep level?
12 Answers
...
What's the difference between @Component, @Repository & @Service annotations in Spring?
...o an @WebServlet? It's not a Spring MVC controller, but that's the conceptually closest match. What about servlet filters?
– Rick
Mar 11 '14 at 10:08
...
A gentle tutorial to Emacs/Swank/Paredit for Clojure
I am moving to Emacs to work on Clojure /Lisp.
What is all the information I need to setup on Emacs to be able to do the following?
...
how to get android screen size programmatically, once and for all?
How can I find out my screen size programmatically,
in the units used by touch events
and View measurement/layout?
In other words, I want the coordinates
of the bottom-right corner of the screen,
in the coordinate system used by touch events'
getRawX()/getRawY() and View.getLocationOnScreen() .
...
What does an Asterisk (*) do in a CSS selector?
...
It is a wildcard, this means it will select all elements within that portion of the DOM.
For example, if I want apply margin to every element on my entire page you can use:
* {
margin: 10px;
}
You can also use this within sub-selections, for example the followi...
Unique (non-repeating) random numbers in O(1)?
...5: 1| 7| 3|
+--+--+--+--+--+--+--+--+--+--+--+
...
After 11 iterations, all numbers in the array have been selected, max == 0, and the array elements are shuffled:
+--+--+--+--+--+--+--+--+--+--+--+
| 4|10| 8| 6| 2| 0| 9| 5| 1| 7| 3|
+--+--+--+--+--+--+--+--+--+--+--+
At this point, max can be...
How to use git merge --squash?
...
Say your bug fix branch is called bugfix and you want to merge it into master:
git checkout master
git merge --squash bugfix
git commit
This will take all the commits from the bugfix branch, squash them into 1 commit, and merge it with your master bran...
Unit testing code with a file system dependency
...
There's really nothing wrong with this, it's just a question of whether you call it a unit test or an integration test. You just have to make sure that if you do interact with the file system, there are no unintended side effects. Sp...
When is it better to use String.Format vs string concatenation?
I've got a small piece of code that is parsing an index value to determine a cell input into Excel. It's got me thinking...
...
What are good grep tools for Windows? [closed]
Any recommendations on grep tools for Windows? Ideally ones that could leverage 64-bit OS.
28 Answers
...