大约有 46,000 项符合查询结果（耗时：0.0629秒） [XML]
instantiate a class from a variable in PHP?
I know this question sounds rather vague so I will make it more clear with an example:
5 Answers
...
Getting pids from ps -ef |grep keyword
I want to use ps -ef | grep "keyword" to determine the pid of a daemon process (there is a unique string in output of ps -ef in it).
...
What is the difference between double-ampersand (&&) and semicolon (;) in Linux Bash?
What is the difference between ampersand and semicolon in Linux Bash ?
3 Answers
3
...
How to create a protocol with methods that are optional?
I noticed methods marked optional in several protocols defined in the iPhone SDK, such as the UIActionSheetDelegate protocol for example.
...
How to randomly sort (scramble) an array in Ruby?
I'd like to have my array items scrambled.
Something like this:
5 Answers
5
...
Why is JsonRequestBehavior needed?
Why is Json Request Behavior needed?
5 Answers
5
...
Can someone explain collection_select to me in clear, simple terms?
I am going through the Rails API docs for collection_select and they are god-awful.
2 Answers
...
Hidden features of WPF and XAML?
Here is a large number of hidden features discussed for variety of languages. Now I am curious about some hidden features of XAML and WPF?
...
CSS file not opening in Visual Studio 2010 SP1?
I am unable to open CSS files in Visual Studio 2010 after adding to a project.
4 Answers
...
WPF: How to display an image at its original size?
I have a problem with displaying images in WPF.
5 Answers
5
...