大约有 40,000 项符合查询结果（耗时：0.0766秒） [XML]
How to run crontab job every week on Sunday
...e of sun, mon, tue, wed, thu, fri, or sat for the day. This also saves you from having to choose between using 0 or 7 for sunday.
– flu
May 15 '14 at 13:15
add a comment
...
Django - how to create a file and save it to a model's FileField?
...solution, but here is the way I went about generating a CSV and serving it from a view.
Thought it was worth while putting this here as it took me a little bit of fiddling to get all the desirable behaviour (overwrite existing file, storing to the right spot, not creating duplicate files etc).
Dja...
Troubleshooting “The use statement with non-compound name … has no effect”
...atement, because its arguments are always seen as absolute (i.e., starting from the global namespace). 2) use Blog; is not necessarily useless: for example, from a file namespaced as Blog\Util\CLI, it would enable you to write Blog\Entry::method() instead of \Blog\Entry::method(). Not that this is r...
What is the difference between square brackets and parentheses in a regex?
...on capturing group.
[abc] is a "character class" that means "any character from a,b or c" (a character class may use ranges, e.g. [a-d] = [abcd])
The reason these regexes are similar is that a character class is a shorthand for an "or" (but only for single characters). In an alternation, you can a...
Flask-SQLalchemy update a row's information
...odel. Pickled attributes should be replaced in order to trigger updates:
from flask import Flask
from flask.ext.sqlalchemy import SQLAlchemy
from pprint import pprint
app = Flask(__name__)
app.config['SQLALCHEMY_DATABASE_URI'] = 'sqllite:////tmp/users.db'
db = SQLAlchemy(app)
class User(db.Mode...
How do I use disk caching in Picasso?
...tBerde: Thanks for the quick note but I figured out the image is coming up from memory only if the App is running in background (when on offline). if I close the app, that is clear the running apps then open my app again the images don't load from Cache. I have set the error default loading image th...
Most efficient way to store thousand telephone numbers
...structure: the first is a constant for the first five digits (17 bits); so from here on, each phone number has only the remaining five digits left. We view these remaining five digits as 17-bit binary integers and store k of those bits using one method and 17 - k = m with a different method, determi...
Python Sets vs Lists
...st(iterable):
... for i in iterable:
... pass
...
>>> from timeit import timeit
>>> timeit(
... "iter_test(iterable)",
... setup="from __main__ import iter_test; iterable = set(range(10000))",
... number=100000)
12.666952133178711
>>> timeit(
... ...
How do I reference a Django settings variable in my models.py?
...
Try with this: from django.conf import settings then
settings.VARIABLE to access that variable.
share
|
improve this answer
|
...
Simplest way to do a fire and forget method in c# 4.0
...fire-and-forget style, the right way - in the
/// background, separate from the current thread, with no risk
/// of it trying to rejoin the current thread.
/// </summary>
public static void RunBg(Func<Task> fn)
{
Task.Run(fn).ConfigureAwait(false);
}
...