大约有 47,000 项符合查询结果（耗时：0.0952秒） [XML]
How to run a Runnable thread in Android at defined intervals?
... developed an application to display some text at defined intervals in the Android emulator screen. I am using the Handler class. Here is a snippet from my code:
...
How to convert a String to its equivalent LINQ Expression Tree?
...o you mean by "writing a parser (using Expression under the hood)" Parsing and then generating an expression tree, or does System.Linq.Expressions have some parsing mechanism?
– AK_
Jul 1 '13 at 14:51
...
nginx missing sites-available directory
I installed Nginx on Centos 6 and I am trying to set up virtual hosts. The problem I am having is that I can't seem to find the /etc/nginx/sites-available directory.
...
How to check iOS version?
...lable(iOS 9, *) {}
In Objective-C, you need to check the system version and perform a comparison.
[[NSProcessInfo processInfo] operatingSystemVersion] in iOS 8 and above.
As of Xcode 9:
if (@available(iOS 9, *)) {}
The full answer …
In Objective-C, and Swift in rare cases, it's better to...
iPhone 5 CSS media query
The iPhone 5 has a longer screen and it's not catching my website's mobile view. What are the new responsive design queries for the iPhone 5 and can I combine with existing iPhone queries?
...
How can I use goto in Javascript?
...led Summer of Goto that allows you use JavaScript at its fullest potential and will revolutionize the way you can write your code.
This JavaScript preprocessing tool allows you to create a label and then goto it using this syntax:
[lbl] <label-name>
goto <label-name>
For example, the ex...
What are all the uses of an underscore in Scala?
I've taken a look at the list of surveys taken on scala-lang.org and noticed a curious question: " Can you name all the uses of “_”? ". Can you? If yes, please do so here. Explanatory examples are appreciated.
...
How do you use “
I just finished reading about scoping in the R intro , and am very curious about the <<- assignment.
6 Answers
...
Using Java with Nvidia GPUs (CUDA)
I'm working on a business project that is done in Java, and it needs huge computation power to compute business markets. Simple math, but with huge amount of data.
...
XSD - how to allow elements in any order any number of times?
I am trying to create an XSD, and trying to write the definition with the following requirement:
6 Answers
...