大约有 40,000 项符合查询结果（耗时：0.0486秒） [XML]
How do I migrate a model out of one django app and into a new one?
...on and specific:
myproject/
|-- common
| |-- migrations
| | |-- 0001_initial.py
| | `-- 0002_create_cat.py
| `-- models.py
`-- specific
|-- migrations
| |-- 0001_initial.py
| `-- 0002_create_dog.py
`-- models.py
Now we want to move model common.models.cat to specif...
How to step through Python code to help debug issues?
...rSummoner, pudb is great for that. Also pydev
– alpha_989
Jun 11 '18 at 19:45
pdb is not a command line tool. To use i...
Python multiprocessing pool.map for multiple arguments
... function:
import multiprocessing
from itertools import product
def merge_names(a, b):
return '{} & {}'.format(a, b)
if __name__ == '__main__':
names = ['Brown', 'Wilson', 'Bartlett', 'Rivera', 'Molloy', 'Opie']
with multiprocessing.Pool(processes=3) as pool:
results = poo...
Auto-center map with multiple markers in Google Maps API v3
...center your point:
//Example values of min & max latlng values
var lat_min = 1.3049337;
var lat_max = 1.3053515;
var lng_min = 103.2103116;
var lng_max = 103.8400188;
map.setCenter(new google.maps.LatLng(
((lat_max + lat_min) / 2.0),
((lng_max + lng_min) / 2.0)
));
map.fitBounds(new google...
machine learning libraries in C# [closed]
...asses:
public class TrainingSet
{
private readonly List<string> _attributes = new List<string>();
private readonly List<List<object>> _examples = new List<List<object>>();
public TrainingSet(params string[] attributes)
{
_attributes.AddRang...
What are the details of “Objective-C Literals” mentioned in the Xcode 4.4 release notes?
...
This part is new. Expression Literals
When you have an expression (M_PI / 16 for example) you should put it inside parenthesis.
This syntax works for numeral expressions, booleans, finding an index in a (C-) string, boolean values, enum constants, and even character strings!
NSNumber *piO...
Test for existence of nested JavaScript object key
...
Update
Looks like lodash has added _.get for all your nested property getting needs.
_.get(countries, 'greece.sparta.playwright')
https://lodash.com/docs#get
Previous answer
lodash users may enjoy lodash.contrib which has a couple methods that mitigate ...
ValidateAntiForgeryToken purpose, explanation and example
...
It seems that the form __RequestVerificationToken and cookie __RequestVerificationToken are not the same, they work as a pair.
– WaiKit Kung
Apr 8 '15 at 15:54
...
Difference between shared objects (.so), static libraries (.a), and DLL's (.so)?
...
FYI: g++ has __attribute__ syntax for selectively 'export' symbols: #define DLLEXPORT __attribute__ ((visibility("default"))) #define DLLLOCAL __attribute__ ((visibility("hidden")))
– Brian Cannard
...
How to sort an IEnumerable
...myList = myEnumerable.ToList();
myList.Sort();
Based on your comment:
_components = (from c in xml.Descendants("component")
let value = (string)c
orderby value
select value
)
.Distinct()
.ToList();
or
_com...