大约有 42,000 项符合查询结果（耗时：0.0587秒） [XML]
How to increment a NSNumber
...
Update: FYI, I personally like BoltClock's and DarkDusts's one-line answers better. They're more concise, and don't require additional variables.
In order to increment an NSNumber, you're going to have to get its value, increment that, and store it in a new NSNumbe...
Constructor overloading in Java - best practice
...
While there are no "official guidelines" I follow the principle of KISS and DRY. Make the overloaded constructors as simple as possible, and the simplest way is that they only call this(...). That way you only need to check and handle the parameters once and only once.
public class Simple {
...
How to use CSS to surround a number with a circle?
...
Here's a demo on JSFiddle and a snippet:
.numberCircle {
border-radius: 50%;
width: 36px;
height: 36px;
padding: 8px;
background: #fff;
border: 2px solid #666;
color: #666;
text-align: center;
font...
Can I replace groups in Java regex?
I have this code, and I want to know, if I can replace only groups (not all pattern) in Java regex.
Code:
7 Answers
...
Getting reference to the top-most view/window in iOS application
...IAlertView. When I init the manager that listens for NSNotification events and adds views in response, I need to get a reference to the top-most view in the application. This is what I have at the moment:
...
Run an OLS regression with Pandas Data Frame
I have a pandas data frame and I would like to able to predict the values of column A from the values in columns B and C. Here is a toy example:
...
What is the difference between return and return()?
I tested the above code in Chrome's console, and both returned 1 .
9 Answers
9
...
Can multiple different HTML elements have the same ID if they're different elements?
..., where the IDs under the parent would be unique. eg $('div#car span#size) and $('div#truck span#size').
– BJury
Jul 2 '14 at 11:33
...
How do I create delegates in Objective-C?
I know how delegates work, and I know how I can use them.
19 Answers
19
...
Seeing the console's output in Visual Studio 2010?
...
jonsca: i have a namespace in play and why can i just use console.writeline, i want my program to write to the console its not only for testing reasons??
– r3x
Mar 14 '11 at 16:16
...