大约有 7,000 项符合查询结果（耗时：0.0484秒） [XML]
How do I determine the size of an object in Python?
... casually (I should unittest it):
>>> getsize(['a', tuple('bcd'), Foo()])
344
>>> getsize(Foo())
16
>>> getsize(tuple('bcd'))
194
>>> getsize(['a', tuple('bcd'), Foo(), {'foo': 'bar', 'baz': 'bar'}])
752
>>> getsize({'foo': 'bar', 'baz': 'bar'})
400
>&...
How to get instance variables in Python?
...
Use vars()
class Foo(object):
def __init__(self):
self.a = 1
self.b = 2
vars(Foo()) #==> {'a': 1, 'b': 2}
vars(Foo()).keys() #==> ['a', 'b']
...
How to extract URL parameters from a URL with Ruby or Rails?
...te the inverse, at least not in Ruby 1.8.7 / Rails 2.3. A query string of foo[]=1&foo[]=2 is correctly parsed as { "foo" =>["1","2"] }, but build_query turns that into "foo=1&foo=2", which when parsed again yields { "foo"=>"2"}.
– Raels
Jul 20 '1...
How to run a command before a Bash script exits?
...e of using trap:
#!/bin/bash -e
function cleanup {
echo "Removing /tmp/foo"
rm -r /tmp/foo
}
trap cleanup EXIT
mkdir /tmp/foo
asdffdsa #Fails
Output:
dbrown@luxury:~ $ sh traptest
t: line 9: asdffdsa: command not found
Removing /tmp/foo
dbrown@luxury:~ $
Notice that even though the asdf...
How to 'git pull' into a branch that is not the current one?
...pdate, and pull Git branches without using checkouts
# Merge local branch foo into local branch master,
# without having to checkout master first.
# Here `.` means to use the local repository as the "remote":
git fetch . foo:master
# Merge remote branch origin/foo into local branch foo,
# without ...
jQuery posting JSON
...er what happens when your data contains, for instance, a list of things: { foo: [1,2,3], bar: 'baz' }. This will get form-encoded as foo%5B%5D=1&foo%5B%5D=2&foo%5B%5D=3&bar=baz (unescaped, it's foo[]=1&foo[]=2&foo[]=3&bar=baz). Likely not what you want server-side.
...
Is module __file__ attribute absolute or relative?
...
got it, but @agf, if i use python /foo/abc.py from /home, I suppose the part of sys.path that contains the module is /home/foo and my current directory is /home/, why does print file gives me a relative path?
– goh
Aug 19...
Simple explanation of clojure protocols
...tiple functions together and say "these 3 functions together form Protocol Foo". You cannot do that with Multimethods, they always stand on their own. For example, you could declare that a Stack Protocol consists of both a push and a pop function together.
So, why not just add the capability to gro...
SetUnhandledExceptionFilter and the C/C++ Runtime Library - C/C++ - 清泛网移动版 - 专注IT技能提升
...ash!" << std::endl;
Bar();
}
virtual void Foo() = 0;
void Bar()
{
Foo();
}
};
struct D: public B
{
void Foo()
{
}
};
B* b = new D;
// Just to silence the warning C4...
SetUnhandledExceptionFilter and the C/C++ Runtime Library - C/C++ - 清泛网移动版 - 专注IT技能提升
...ash!" << std::endl;
Bar();
}
virtual void Foo() = 0;
void Bar()
{
Foo();
}
};
struct D: public B
{
void Foo()
{
}
};
B* b = new D;
// Just to silence the warning C4...