大约有 22,000 项符合查询结果（耗时：0.0339秒） [XML]
What is the difference between RDF and OWL? [closed]
...edicate. The object is either another URI or a literal such as a number or string. Literals can have a type (which is also a URI), and they can also have a language. Yes, this means triples can have up to 5 bits of data!
For example a triple might describe the fact that Charles is Harrys father.
&...
What does -D_XOPEN_SOURCE do/mean?
...t;some number>
it tells your compiler to include definitions for some extra functions that are defined in the X/Open and POSIX standards.
This will give you some extra functionality that exists on most recent UNIX/BSD/Linux systems, but probably doesn't exist on other systems such as Windows.
...
In Python, what happens when you import inside of a function? [duplicate]
...me is expensive. Try running an empty script vs one containing just import string,itertools,fractions,heapq,re,array,bisect,collections,math,os. The first takes an average of 180 ms, and the second 230 ms. So it's not microseconds for starters. It's tens of milliseconds (maybe a disc access happens?...
PHP: Storing 'objects' inside the $_SESSION
...on objects based on the ID the client submitted with the request. All this extra work is a double whammy on scalability (a big reason HTTP is stateless).
Whammy One: It reduces the work a single server can do.
Whammy Two: It makes it harder to scale out because now you can't just route a request t...
Handlebars.js Else If
...ow.com/questions/15008564/… So, instead of #if _is_friend, you can use a string with a very simple helper (in their answer); #if friend_type "is_friend" and #if friend_type "is_not_friend_yet"
– Dylan Reich
Nov 29 '14 at 4:57
...
What is the use of the pipe symbol in YAML?
...
Also look at in-yaml-how-do-i-break-a-string-over-multiple-lines
– Oliver
Apr 12 '18 at 13:18
...
Regular expression to match non-ASCII characters?
...cters in a regex? I would like to match all words individually in an input string, but the language may not be English, so I will need to match things like ü, ö, ß, and ñ. Also, this is in Javascript/jQuery, so any solution will need to apply to that.
...
Declaring a custom android UI element using XML
...xtColor"/>
<attr name="extraInformation" format="string" />
</declare-styleable>
</resources>
Notice the use of an unqualified name in the declare-styleable tag. Non-standard android attributes like extraInformation need to have their type declared. Ta...
How do I delete an exported environment variable?
... @RodrigoGurgel using echo won't show existing variable set to empty string or nul. to your point, though, a proper way to test for variable would be env | grep -e '^VARNAME='.
– Thomas
Feb 1 '19 at 14:22
...
Is there a way to ignore header lines in a UNIX sort?
... after the end of the first line. If you run it on a pipe, bash reads one char at a time until it passes the end of the line.
– Sam Watkins
May 5 '15 at 9:01
...