大约有 44,000 项符合查询结果(耗时:0.0504秒) [XML]

https://stackoverflow.com/ques... 

How to create a video from images with FFmpeg?

... As far as I know –r parameter is variable frame rate this means that FFMPEG might drop or duplicate frames to achieve desired output frame rate. Using fps filter “-vf fps=value” force FFMPEG to produce constant frame rate. See Creat...
https://stackoverflow.com/ques... 

Professional jQuery based Combobox control? [closed]

... some usability issues with this control, but as a user I don't think I'd know to start typing for the dropdownlist to turn into a textbox. I much prefer the Combo Dropdown Box, but it still has some features that I'd want and it's still in alpha. The only think I don't like about this other than i...
https://stackoverflow.com/ques... 

How to concatenate two strings in C++?

...td::string greet = s + " World"; //concatenation easy! Easy, isn't it? Now if you need char const * for some reason, such as when you want to pass to some function, then you can do this: some_c_api(s.c_str(), s.size()); assuming this function is declared as: some_c_api(char const *input, si...
https://stackoverflow.com/ques... 

`from … import` vs `import .` [duplicate]

...e. This makes all names from the module available in the local namespace. Now let's see what happens when we do import X.Y: >>> import sys >>> import os.path Check sys.modules with name os and os.path: >>> sys.modules['os'] <module 'os' from '/System/Library/Framework...
https://stackoverflow.com/ques... 

AngularJS ui-router login authentication

...Params = $rootScope.toStateParams; // now, send them to the signin state // so they can log in $state.go('signin'); } } }); } }; } ]) Now all you need to do is listen in on ui-route...
https://stackoverflow.com/ques... 

Gem::LoadError for mysql2 gem, but it's already in Gemfile

...e with a specific mysql version like below gem 'mysql2', '~> 0.3.18' Now stop the server and run bundle bundle install Now restart your server. It should work. rails s share | improve thi...
https://stackoverflow.com/ques... 

Is there an interactive way to learn Vim? [closed]

...that didn't involve a wall of text, or scrolling through vimtutor without knowing the commands to do so. I wondered if anything else existed for such a purpose. ...
https://stackoverflow.com/ques... 

How to compare DateTime in C#?

... Your answer provides a way to see what the difference is instead of just knowing that the date is before or after. Of course his answer is better for the OP, but yours is better for some people who got here from google (self included). – levininja Apr 14 '17 ...
https://stackoverflow.com/ques... 

Tools for making latex tables in R [closed]

... res <- x res[oldx] <- NA return(res)} Now generate some fake data data<-data.frame(animal=sample(c("elephant", "dog", "cat", "fish", "snake"), 100,replace=TRUE), colour=sample(c("red", "blue", "green", "yellow"), 100,replace=TRUE), siz...
https://stackoverflow.com/ques... 

Android - startActivityForResult immediately triggering onActivityResult

... I know this is old, but this was so absolutely invaluable to me that I wanted to say thanks to the user, and point out for anyone jumping between activities that this is freaking gold! Saved my ass during a hackathon ;) ...