大约有 45,000 项符合查询结果(耗时:0.0515秒) [XML]
UnboundLocalError on local variable when reassigned after first use
...
global c
as the first line of the function.
As for python 3, there is now
nonlocal c
that you can use to refer to the nearest enclosing function scope that has a c variable.
share
|
improve ...
How to tell Xcode where my info.plist and .pch files are
I renamed my project and it's files and now Xcode is still looking for the old info.plist file. Where do I set the locations of the .plist and .pch files that it needs.
...
How to print the full traceback without halting the program?
...ever, a best practice is to have a logger set up for your module. It will know the name of the module and be able to change levels (among other attributes, such as handlers)
import logging
logging.basicConfig(level=logging.DEBUG)
logger = logging.getLogger(__name__)
In which case, you'll want the l...
.htaccess mod_rewrite - how to exclude directory from rewrite rule
...ectories on my server from these rules, so they can become accessible. For now all requests are sent to index.php file.
6 ...
How can I tell if a DOM element is visible in the current viewport?
...eed to support version of Internet Explorer before 7.
Original solution (now outdated):
This will check if the element is entirely visible in the current viewport:
function elementInViewport(el) {
var top = el.offsetTop;
var left = el.offsetLeft;
var width = el.offsetWidth;
var height = ...
How can I do DNS lookups in Python, including referring to /etc/hosts?
...
Does anyone know at which level this lookup is cached? Within Python? Or OS? Or DNS server?
– Simon East
Sep 18 '11 at 9:36
...
Run an Application in GDB Until an Exception Occurs
...mes catch is not the best way to debug exception handling: if you need to know exactly where an exception is raised, it is better to stop before the exception handler is called, since that way you can see the stack before any unwinding takes place. If you set a breakpoint in an exception handler ins...
What is a StoryBoard ID and how can i use this?
....storyboard can be accessed from any viewcontroller. I will edit my answer now so you can see
– Eric
Dec 13 '12 at 20:15
...
Notification click: activity already open
...es on top of it will be closed and
this Intent will be delivered to the (now on top) old activity as a
new Intent.
For example, consider a task consisting of the activities: A, B, C, D.
If D calls startActivity() with an Intent that resolves to the
component of activity B, then C and D...
Is there a setting on Google Analytics to suppress use of cookies for users who have not yet given c
... to tracking, for future pageviews
_gaq.push(['_trackPageview']); // now run the pageview that you 'missed'
}
Opt Out
With this approach, you'd allow the user to opt-out of tracking, which would mean you'd use a cookie to set the ga-disable-UA-XXXXXX-Y' property and a cookie to manage it...
