大约有 9,000 项符合查询结果(耗时:0.0247秒) [XML]

https://stackoverflow.com/ques... 

How to set a stroke-width:1 on only certain sides of SVG shapes?

Setting a stroke-width: 1 on a <rect> element in SVG places a stroke on every side of the rectangle. 3 Answers ...
https://stackoverflow.com/ques... 

Can virtual functions have default parameters?

If I declare a base class (or interface class) and specify a default value for one or more of its parameters, do the derived classes have to specify the same defaults and if not, which defaults will manifest in the derived classes? ...
https://stackoverflow.com/ques... 

How do I read CSV data into a record array in NumPy?

I wonder if there is a direct way to import the contents of a CSV file into a record array, much in the way that R's read.table() , read.delim() , and read.csv() family imports data to R's data frame? ...
https://stackoverflow.com/ques... 

Does delete on a pointer to a subclass call the base class destructor?

I have an class A which uses a heap memory allocation for one of its fields. Class A is instantiated and stored as a pointer field in another class ( class B . ...
https://stackoverflow.com/ques... 

Should I use Java's String.format() if performance is important?

We have to build Strings all the time for log output and so on. Over the JDK versions we have learned when to use StringBuffer (many appends, thread safe) and StringBuilder (many appends, non-thread-safe). ...
https://stackoverflow.com/ques... 

JOIN two SELECT statement results

Is it possible to join the results of 2 sql SELECT statements in one statement? I have a database of tasks where each record is a separate task, with deadlines (and a PALT , which is just an INT of days from start to deadline. Age is also an INT number of days.) ...
https://stackoverflow.com/ques... 

What does “Receiver type 'CALayer' for instance message is a forward declaration” mean here?

I'm porting a block of code from an iOS4 project to iOS5 and I'm having some troubles with ARC. The code generates a PDF from a screen capture. ...
https://stackoverflow.com/ques... 

How can I know when an EditText loses focus?

I need to catch when an EditText loses focus, I've searched other questions but I didn't find an answer. 5 Answers ...
https://stackoverflow.com/ques... 

How to convert DateTime to VarChar

I am working on a query in Sql Server 2005 where I need to convert a value in DateTime variable into a varchar variable in yyyy-mm-dd format (without time part). How do I do that? ...
https://stackoverflow.com/ques... 

IPC performance: Named Pipe vs Socket

Everyone seems to say named pipes are faster than sockets IPC. How much faster are they? I would prefer to use sockets because they can do two-way communication and are very flexible but will choose speed over flexibility if it is by considerable amount. ...