大约有 15,000 项符合查询结果（耗时：0.0326秒） [XML]
Split a python list into other “sublists” i.e smaller lists [duplicate]
...
I'd say
chunks = [data[x:x+100] for x in range(0, len(data), 100)]
If you are using python 2.x instead of 3.x, you can be more memory-efficient by using xrange(), changing the above code to:
chunks = [data[x:x+100] for x in xrange(0, len(data), ...
Proper MIME media type for PDF files
...th PDFs, I've run across the MIME types application/pdf and application/x-pdf among others.
3 Answers
...
Why does C++ require a user-provided default constructor to default-construct a const object?
...a member M of T has a default member initializer or, if M is of class type X (or array thereof), X
is const-default-constructible,
if T is a union with at least one non-static data member, exactly one variant member has a default member initializer,
if T is not a union, for each anonymous unio...
How to install latest version of git on CentOS 7.x/6.x
...
You can use WANDisco's CentOS repository to install Git 2.x: for CentOS 6, for CentOS 7
Install WANDisco repo package:
yum install http://opensource.wandisco.com/centos/6/git/x86_64/wandisco-git-release-6-1.noarch.rpm
- or -
yum install http://opensource.wandisco.com/centos/7/git...
Ignore mapping one property with Automapper
...
From Jimmy Bogard: CreateMap<Foo, Bar>().ForMember(x => x.Blarg, opt => opt.Ignore());
It's in one of the comments at his blog.
share
|
improve this answer
|...
HTTP POST and GET using cURL in Linux [duplicate]
...
*nix provides a nice little command which makes our lives a lot easier.
GET:
with JSON:
curl -i -H "Accept: application/json" -H "Content-Type: application/json" -X GET http://hostname/resource
with XML:
curl -H "Accept: a...
Most efficient way to reverse a numpy array
...ersed_arr)
do_something_else(arr)
look_at(reversed_arr)
I'm not a numpy expert, but this seems like it would be the fastest way to do things in numpy. If this is what you are already doing, I don't think you can improve on it.
P.S. Great discussion of numpy views here:
View onto a numpy array?
...
How to change the type of a field?
...g).
So simply load the document from the DB, perform the cast (new String(x)) and then save the document again.
If you need to do this programmatically and entirely from the shell, you can use the find(...).forEach(function(x) {}) syntax.
In response to the second comment below. Change the fiel...
Python, compute list difference
...ase on lists with ~6000 strings each showed that this method was almost 100x faster than list comprehensions.
– perrygeo
Feb 1 '14 at 17:01
15
...
What is the printf format specifier for bool?
...t when passed down to printf()'s variadic arguments, you can use %d:
bool x = true;
printf("%d\n", x); // prints 1
But why not:
printf(x ? "true" : "false");
or, better:
printf("%s", x ? "true" : "false");
or, even better:
fputs(x ? "true" : "false", stdout);
instead?
...