大约有 46,000 项符合查询结果（耗时：0.0557秒） [XML]
How do I use NSTimer?
...ewController
double timerInterval = 1.0f;
- (NSTimer *) timer {
if (!_timer) {
_timer = [NSTimer timerWithTimeInterval:timerInterval target:self selector:@selector(onTick:) userInfo:nil repeats:YES];
}
return _timer;
}
- (void)viewDidLoad
{
[super viewDidLoad];
[[NSRu...
JavaScript Date Object Comparison
...
16
You do not need to use the getTime method- you can subtract a date object from another date obj...
Why doesn't C have unsigned floats?
... answer to that is that there was no unsigned float standard defined originally. Since languages like to be backwards compatible, even if it were added languages couldn't make use of it. To see the floating point spec you should look at the IEEE standard 754 Floating-Point.
You can get around not...
Source code highlighting in LaTeX
...ygments to provide top-notch syntax highlighting in LaTeX. For example, it allows the following output.
Here’s a minimal file to reproduce the above code (notice that including Unicode characters might require XeTeX)!
\documentclass[a4paper]{article}
\usepackage{fontspec}
\usepackage{minted}
...
Java JDBC - How to connect to Oracle using Service Name instead of SID
...elped me resolve the issue I was struggling with for days. I looked around all over the internet until I found the answered by Jim Tough on May 18 '11 at 15:17. With that answer I was able to connect. Now I want to give back and help others with a complete example. Here goes:
import java.sql.*;
p...
Why, Fatal error: Class 'PHPUnit_Framework_TestCase' not found in …?
...g the most recent PHPUnit version on their PHP 7 builds. My fix was to manually download an old phar and use that instead.
– DisgruntledGoat
Mar 13 '17 at 17:12
2
...
Rails detect if request was AJAX
... |
edited Jul 10 '15 at 16:46
answered Nov 22 '11 at 1:08
...
How to avoid java.util.ConcurrentModificationException when iterating through and removing elements
...t of values you wish to remove, adding to that list within the loop, then call originalList.removeAll(valuesToRemove) at the end
Use the remove() method on the iterator itself. Note that this means you can't use the enhanced for loop.
As an example of the second option, removing any strings with ...
What is base 64 encoding used for?
...you have some binary data that you want to ship across a network, you generally don't do it by just streaming the bits and bytes over the wire in a raw format. Why? because some media are made for streaming text. You never know -- some protocols may interpret your binary data as control character...
How can you iterate over the elements of an std::tuple?
...rloads for every type the tuple might contain. This works best if you know all the tuple elements will share a common base class or something similar.
share
|
improve this answer
|
...