大约有 45,000 项符合查询结果（耗时：0.0804秒） [XML]
Response.Redirect with POST instead of Get?
...a form submission and save some data, then redirect the user to a page offsite, but in redirecting, we need to "submit" a form with POST, not GET.
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What is attr_accessor in Ruby?
... two different methods. The former is called reader and latter is called writer. We didn't create the writer yet so let's do that.
class Person
def name
@name
end
def name=(str)
@name = str
end
end
person = Person.new
person.name = 'Dennis'
person.name # => "Dennis"
Awesome. ...
jQuery click events firing multiple times
I'm attempting to write a video poker game in Javascript as a way of getting the basics of it down, and I've run into a problem where the jQuery click event handlers are firing multiple times.
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Common programming mistakes for Clojure developers to avoid [closed]
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Literal Octals
At one point I was reading in a matrix which used leading zeros to maintain proper rows and columns. Mathematically this is correct, since leading zero obviously don't alter the underlying value. Attempts to de...
Best practice multi language website
I've been struggling with this question for quite some months now, but I haven't been in a situation that I needed to explore all possible options before. Right now, I feel like it's time to get to know the possibilities and create my own personal preference to use in my upcoming projects.
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Which are more performant, CTE or temporary tables?
...to perform multiple processing passes on a set of data.
A CTE can be used either to recurse or to simply improved readability.
And, like a view or inline table valued function can also be treated like a macro to be expanded in the main query
A temp table is another table with some rules around scop...
Disable output buffering
... environment variable
PYTHONUNBUFFERED.
You could also replace sys.stdout with
some other stream like wrapper which
does a flush after every call.
class Unbuffered(object):
def __init__(self, stream):
self.stream = stream
def write(self, data):
self.stream.write(data)
self...
Django: Get an object form the DB, or 'None' if nothing matches
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In Django 1.6 you can use the first() Queryset method. It returns the first object matched by the queryset, or None if there is no matching object.
Usage:
p = Article.objects.order_by('title', 'pub_date').first()
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How do I use reflection to invoke a private method?
...s BindingFlags:
MethodInfo dynMethod = this.GetType().GetMethod("Draw_" + itemType,
BindingFlags.NonPublic | BindingFlags.Instance);
dynMethod.Invoke(this, new object[] { methodParams });
Here's the BindingFlags enumeration documentation.
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How do I merge two dictionaries in a single expression in Python (taking union of dictionaries)?
I have two Python dictionaries, and I want to write a single expression that returns these two dictionaries, merged (i.e. taking the union). The update() method would be what I need, if it returned its result instead of modifying a dictionary in-place.
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