大约有 44,000 项符合查询结果(耗时:0.0957秒) [XML]
How do I validate a date string format in python?
...xcept? Python tends to slow down significantly when an exception is raised and caught.
– chiffa
Sep 6 '16 at 1:26
1
...
Is it possible to get CMake to build both a static and shared version of the same library?
Same source, all that, just want a static and shared version both. Easy to do?
5 Answers
...
What is a 'Closure'?
I asked a question about Currying and closures were mentioned.
What is a closure? How does it relate to currying?
23 Answer...
Forward host port to docker container
...cker container access ports opened by the host? Concretely I have MongoDB and RabbitMQ running on the host and I'd like to run a process in a Docker container to listen to the queue and (optionally) write to the database.
...
Why is iostream::eof inside a loop condition (i.e. `while (!stream.eof())`) considered wrong?
...ndicate, that the next read will be the end of the stream.
Consider this (and assume then next read will be at the end of the stream):
while(!inStream.eof()){
int data;
// yay, not end of stream yet, now read ...
inStream >> data;
// oh crap, now we read the end and *only* now the eo...
How to use ArrayAdapter
I have created row.xml in layouts, but don't know how to show both reason and long_val in the ListView using ArrayAdapter.
...
PEP 8, why no spaces around '=' in keyword argument or a default parameter value?
...hout spaces. It is easier to recognize that we are using keyword arguments and not assigning a variable to itself.
Also, parameters tend to go in the same line whereas assignments usually are each one in their own line, so saving space is likely to be an important matter there.
...
updating table rows in postgres using subquery
...ubquery
WHERE dummy.address_id=subquery.address_id;
This syntax is not standard SQL, but it is much more convenient for this type of query than standard SQL. I believe Oracle (at least) accepts something similar.
share
...
Guaranteed lifetime of temporary in C++?
...t of any other expression. That is in your case after the function returns and the value is evaluated. So, it will work all nice.
It's in fact what makes expression templates work: They can keep hold references to that sort of temporaries in an expression like
e = a + b * c / d
Because every te...
while (1) vs. while(True) — Why is there a difference (in python 2 bytecode)?
...hat the compiler would generate the same byte code for while(True): pass and while(1): pass , but this is actually not the case in python2.7.
...
