大约有 47,000 项符合查询结果(耗时:0.0514秒) [XML]

https://stackoverflow.com/ques... 

Is there any way to specify a suggested filename when using data: URI?

... It does now but it wasn't always so easy. Many of these answers are from years ago. And they also work for other browsers. – Holf Oct 26 '13 at 10:09 8 ...
https://stackoverflow.com/ques... 

What does PermGen actually stand for?

...n specific. Briefly, it contains the Java objects associated with classes and interned strings. In Sun's client implementation with sharing on, classes.jsa is memory mapped to form the initial data, with about half read-only and half copy-on-write. Java objects that are merely old are kept in the ...
https://stackoverflow.com/ques... 

How to get a list of installed Jenkins plugins with name and version pair

...th suggestion above, wrapped with a curl request and some pruning of built from source plugins we use this approach to generate the plugins.txt for our docker image as mentioned by @ErikEnglund above echo 'script=Jenkins.instance.pluginManager.plugins.each{ plugin -> println ("${plugin.getShor...
https://stackoverflow.com/ques... 

How do I wrap text in a UITableViewCell without a custom cell

...as still not adjusting correctly - solution was that I was loading my cell from a custom NIB file, which happens after the cell height in adjusted. And I had my settings inside the NIB file to not wrap text, and only have 1 line for the label; the NIB file settings were overriding the settings I ad...
https://stackoverflow.com/ques... 

SQL - Update multiple records in one query

...the rows u need using a small script. UPDATE [Table] SET couloumn1= (select couloumn1 FROM Table WHERE IDCouloumn = [PArent ID]), couloumn2= (select couloumn2 FROM Table WHERE IDCouloumn = [PArent ID]), couloumn3= (select couloumn3 FROM Table WHERE IDCouloumn = [PArent ID]), cou...
https://stackoverflow.com/ques... 

Is there a python equivalent of Ruby's 'rvm'?

... Optionally, if you're using Macports you can use python_select. Install python_select with: $ sudo port install python_select Assuming python 2.6 and 2.5 have bee installed via Macports you can switch pythons like so: $ sudo python_select python25 => Selecting version "pyth...
https://stackoverflow.com/ques... 

Is there a way to take a screenshot using Java and save it to some sort of image?

...can actually use java.awt.Robot to "create an image containing pixels read from the screen." You can then write that image to a file on disk. I just tried it, and the whole thing ends up like: Rectangle screenRect = new Rectangle(Toolkit.getDefaultToolkit().getScreenSize()); BufferedImage capture ...
https://stackoverflow.com/ques... 

MySQL: @variable vs. variable. What's the difference?

...ialize this variable with a SET statement or inside a query: SET @var = 1 SELECT @var2 := 2 When you develop a stored procedure in MySQL, you can pass the input parameters and declare the local variables: DELIMITER // CREATE PROCEDURE prc_test (var INT) BEGIN DECLARE var2 INT; SET var2 =...
https://stackoverflow.com/ques... 

getting type T from IEnumerable

... t.GetGenericTypeDefinition() == typeof(IEnumerable<>)) .Select(t => t.GetGenericArguments()[0]); } Some objects implement more than one generic IEnumerable so it is necessary to return an enumeration of them. Edit: Although, I have to say, it's a terrible idea for a class to...
https://stackoverflow.com/ques... 

What is /dev/null 2>&1?

...standard error as we know whenever a file is opened, the operating system (from kernel) returns a non-negative integer called a file descriptor. The file descriptor for these files are 0, 1, and 2, respectively. So 2>&1 simply says redirect standard error to standard output. & means ...