大约有 47,000 项符合查询结果(耗时:0.0751秒) [XML]

https://stackoverflow.com/ques... 

Can I install Python 3.x and 2.x on the same Windows computer?

...ude C:\Python27\;C:\Python27\Scripts\;C:\Python34\;C:\Python34\Scripts\; Now in command line you can use python for 2.7 and python3 for 3.4. share | improve this answer | f...
https://stackoverflow.com/ques... 

Why is list initialization (using curly braces) better than the alternatives?

...an call completely different functions, and this is an important thing to know. It can even result in calls that seem unintuitive. Saying that you should prefer {} by default will lead to people misunderstanding what's going on. This isn't your fault, though. I personally think it's an extremely poo...
https://stackoverflow.com/ques... 

lexers vs parsers

...TMT_END in your syntax (for the parser) to denote the end of instructions. Now you can have a token with the same name associated with it, generated by the lexer. But you can change the actual lexeme it stands for. Eg. you can define STMT_END as ; to have C/C++-like source code. Or you can define it...
https://stackoverflow.com/ques... 

Value of i for (i == -i && i != 0) to return true in Java

...if i get 2's compliment of it, it is again 011111...+1 = 100000...but you know it top of your head or we can apply any logic? – Sunny Jul 22 '13 at 6:29 1 ...
https://stackoverflow.com/ques... 

Final arguments in interface methods - what's the point?

... The Java 8 language spec now says that there are eight kinds of variables (up from seven--they added lambda parameters). Method parameters are still fourth on the list (at least some things in life seem stable. :-)). – Ted Hopp ...
https://stackoverflow.com/ques... 

How to do a JUnit assert on a message in a logger

... but this doesn't work for slf4j! do you know how can I change it to work with that as well? – Shilan Jun 18 '18 at 14:45 3 ...
https://stackoverflow.com/ques... 

HTML5 canvas ctx.fillText won't do line breaks?

... Thank you! I had a feeling it would be bothersome... Nice to know about the SKYWRITER, but I'll just "wait" until fillText() is improved. It wasn't a terribly important deal in my case. Hah, no line height, it's like someone did that on purpose. :D – Spectraljump ...
https://stackoverflow.com/ques... 

How to split a column into two columns?

...ing the power of the str.extract() method. But for a simple split over a known separator (like, splitting by dashes, or splitting by whitespace), the .str.split() method is enough1. It operates on a column (Series) of strings, and returns a column (Series) of lists: >>> import pandas as p...
https://stackoverflow.com/ques... 

Neither BindingResult nor plain target object for bean name available as request attribute [duplicat

...iated model (which i don't have available), and so your answer is spot on. now excuse me while i go and bury myself deep in the groud. (a convenient way of adding a model to the view is to return a proper ModelAndView object like so: return new ModelAndView("landing", "login", new Login()); ) ...
https://stackoverflow.com/ques... 

What's the point of having pointers in Go?

I know that pointers in Go allow mutation of a function's arguments, but wouldn't it have been simpler if they adopted just references (with appropriate const or mutable qualifiers). Now we have pointers and for some built-in types like maps and channels implicit pass by reference. ...