大约有 40,000 项符合查询结果（耗时：0.0470秒） [XML]
Python element-wise tuple operations like sum
...
Using all built-ins..
tuple(map(sum, zip(a, b)))
share
|
improve this answer
|
follow
|
...
What's the difference between size_t and int in C++?
...ndly Wikipedia:
The stdlib.h and stddef.h header files define a datatype called size_t which is used to represent the size of an object. Library functions that take sizes expect them to be of type size_t, and the sizeof operator evaluates to size_t.
The actual type of size_t is platform-dependent; ...
Why return NotImplemented instead of raising NotImplementedError
...aised and can be used in further tests.
http://jcalderone.livejournal.com/32837.html
To summarise that link:
"NotImplemented signals to the runtime that it should ask someone else to satisfy the operation. In the expression a == b, if a.__eq__(b) returns NotImplemented, then Python tries b.__e...
Why is HttpClient BaseAddress not working?
...se class of my RestClient, it was almost invisible and got no attention at all, and I never saw the full url in at my breakpoints etc.
– ProfK
Dec 13 '16 at 14:32
...
Why can't I use a list as a dict key in python?
..., with the hash as, say, their memory location?
It can be done without really breaking any of the requirements, but it leads to unexpected behavior. Lists are generally treated as if their value was derived from their content's values, for instance when checking (in-)equality. Many would - underst...
How to convert an xml string to a dictionary?
... first two tags
# in a series are different, then they are all different.
if len(element) == 1 or element[0].tag != element[1].tag:
aDict = XmlDictConfig(element)
# treat like list - we assume that if the first two tags
...
How to check version of python modules?
I just installed the python modules: construct and statlib with setuptools like this:
25 Answers
...
What is the difference between char array and char pointer in C?
...char* and char[] are different types, but it's not immediately apparent in all cases. This is because arrays decay into pointers, meaning that if an expression of type char[] is provided where one of type char* is expected, the compiler automatically converts the array into a pointer to its first el...
What's the equivalent of Java's Thread.sleep() in Objective-C/Cocoa?
... Thnx!<br> for future reference, the definition is actually +[NSThread sleepForTimeInterval:] (so, used like [NSThread sleepForTimeInterval:0.1]).
– TinkerTank
Dec 7 '10 at 18:00
...
How to ignore user's time zone and force Date() use specific time zone
...
A Date object's underlying value is actually in UTC. To prove this, notice that if you type new Date(0) you'll see something like: Wed Dec 31 1969 16:00:00 GMT-0800 (PST). 0 is treated as 0 in GMT, but .toString() method shows the local time.
Big note, UTC stands ...