大约有 25,400 项符合查询结果（耗时：0.0541秒） [XML]
int a[] = {1,2,}; Weird comma allowed. Any particular reason?
Maybe I am not from this planet, but it would seem to me that the following should be a syntax error:
20 Answers
...
How to get pixel data from a UIImage (Cocoa Touch) or CGImage (Core Graphics)?
...ow of the image or the entire image size!) I don't the performance of this method will be good since having too many UIColor objects is really heavy. In real life when I need a pixel then UIColor is ok, (An NSArray of UIColors is too much for me). And when you need bunch of colors I won't use UIColo...
What is the difference between a generative and a discriminative algorithm?
Please, help me understand the difference between a generative and a
discriminative algorithm, keeping in mind that I am just a beginner.
...
How do I reset the scale/zoom of a web app on an orientation change on the iPhone?
...get it to scale correctly for the landscape mode I have to double tap on something twice, first to zoom all the way in (the normal double tap behavior) and again to zoom all the way out (again, the normal double tap behavior). When it zooms out, it zooms out to the correct NEW scale for landscape m...
What is the difference between lower bound and tight bound?
...
Big O is the upper bound, while Omega is the lower bound. Theta requires both Big O and Omega, so that's why it's referred to as a tight bound (it must be both the upper and lower bound).
For example, an algorithm taking Omega(n log n) takes at least n log ...
ORA-12514 TNS:listener does not currently know of service requested in connect descriptor
...
I had this issue and the fix was to make sure in tnsnames.ora the SERVICE_NAME is a valid service name in your database. To find out valid service names, you can use the following query in oracle:
select value from v$parameter where name='service_names'
Once I updated tnsname...
git stash blunder: git stash pop and ended up with merge conflicts
I did a git stash pop and ended up with merge conflicts. I removed the files from the file system and did a git checkout as shown below, but it thinks the files are still unmerged. I then tried replacing the files and doing a git checkout again and same result. I event tried forcing it with -...
Cannot push to GitHub - keeps saying need merge
I'm new to GitHub . Today I met some issue when I was trying to push my code to GitHub.
31 Answers
...
Why there is no ForEach extension method on IEnumerable?
...
There is already a foreach statement included in the language that does the job most of the time.
I'd hate to see the following:
list.ForEach( item =>
{
item.DoSomething();
} );
Instead of:
foreach(Item item in list)
{
item.DoSomething();
}...
How can I transition height: 0; to height: auto; using CSS?
...eight in the transition and not height. And set a value on max-height to something bigger than your box will ever get.
See JSFiddle demo provided by Chris Jordan in another answer here.
#menu #list {
max-height: 0;
transition: max-height 0.15s ease-out;
overflow: hidden;
ba...