大约有 31,281 项符合查询结果(耗时:0.0322秒) [XML]

https://stackoverflow.com/ques... 

Threading in a PyQt application: Use Qt threads or Python threads?

...to be unresponsive during the retrieval process (it cannot be split into smaller parts). This is why I'd like to outsource the web connection to a separate worker thread. ...
https://stackoverflow.com/ques... 

What to do about a 11000 lines C++ source file?

...t. Move this into its own file, and for that matter into its own class, in all branches. Because it's stable, this won't cause (many) "awkward" merges that have to be applied to a different file from the one they were originally made on, when you merge the change from one branch to another. Repeat. ...
https://stackoverflow.com/ques... 

configure Git to accept a particular self-signed server certificate for a particular https remote

...ct repos.sample.com:443 Catch the output into a file cert.pem and delete all but part between (and including) -BEGIN CERTIFICATE- and -END CERTIFICATE- Content of resulting file ~/git-certs/cert.pem may look like this: -----BEGIN CERTIFICATE----- MIIDnzCCAocCBE/xnXAwDQYJKoZIhvcNAQEFBQAwgZMxCzAJB...
https://stackoverflow.com/ques... 

How can I explicitly free memory in Python?

...do its job. That said, if the OP is in a situation where he is suddenly deallocating a lot of objects (like in the millions), gc.collect may prove useful. – Jason Baker Aug 22 '09 at 19:53 ...
https://stackoverflow.com/ques... 

Adding a new value to an existing ENUM Type

... It's worth mentioning that this can all be done in a single transaction, so it's mostly safe to do it in a production database. – David Leppik Jul 8 '11 at 20:41 ...
https://stackoverflow.com/ques... 

How to use shell commands in Makefile

... With: FILES = $(shell ls) indented underneath all like that, it's a build command. So this expands $(shell ls), then tries to run the command FILES .... If FILES is supposed to be a make variable, these variables need to be assigned outside the recipe portion, e.g.: F...
https://stackoverflow.com/ques... 

What are some (concrete) use-cases for metaclasses?

...a couple functions I found that I was able to increment the figure count, call draw manually, etc, but I needed to do these before and after every plotting call. So to create both an interactive plotting wrapper and an offscreen plotting wrapper, I found it was more efficient to do this via metacla...
https://stackoverflow.com/ques... 

What is the difference between onPause() and onStop() of Android Activites?

...android/app/Activity.html , it said 'Activity comes into foreground' will call onPause() , and 'Activity is no longer visible' will call onStop() . ...
https://stackoverflow.com/ques... 

What is the effect of extern “C” in C++?

...very compiler is required to provide "C" linkage A linkage specification shall occur only in namespace scope All function types, function names and variable names have a language linkage See Richard's Comment: Only function names and variable names with external linkage have a language linkage Two ...
https://stackoverflow.com/ques... 

ASP.NET: This method cannot be called during the application's pre-start initialization stage

... I see. It automatically defines security and membership rules so you have to override them before you add custom ones. Tricky. – Jonathan Allen May 25 '11 at 8:46 ...