大约有 40,000 项符合查询结果(耗时:0.0327秒) [XML]

https://stackoverflow.com/ques... 

How do I get the full path to a Perl script that is executing?

...me of the script during execution. I discovered that depending on how you call the script $0 varies and sometimes contains the fullpath+filename and sometimes just filename . Because the working directory can vary as well I can't think of a way to reliably get the fullpath+filename of the scr...
https://stackoverflow.com/ques... 

In C#, should I use string.Empty or String.Empty or “” to intitialize a string?

...person - so I suggest you find out what most people on your team like, and all go with that for consistency. Personally I find "" easier to read. The argument that "" and " " are easily mistaken for each other doesn't really wash with me. Unless you're using a proportional font (and I haven't worke...
https://stackoverflow.com/ques... 

Is “argv[0] = name-of-executable” an accepted standard or just a common convention?

... Guesswork (even educated guesswork) is fun but you really need to go to the standards documents to be sure. For example, ISO C11 states (my emphasis): If the value of argc is greater than zero, the string pointed to by argv[0] represents the program name; argv[0][0] shall b...
https://stackoverflow.com/ques... 

How to create a zip archive of a directory in Python?

...e. The documentation tells you what functions are available, but doesn't really explain how you can use them to zip an entire directory. I think it's easiest to explain with some example code: #!/usr/bin/env python import os import zipfile def zipdir(path, ziph): # ziph is zipfile handle f...
https://stackoverflow.com/ques... 

Are list-comprehensions and functional functions faster than “for loops”?

...ike map() , filter() and reduce() faster than a for loop? Why, technically, they run in a C speed , while the for loop runs in the python virtual machine speed ?. ...
https://stackoverflow.com/ques... 

How to access and test an internal (non-exports) function in a node.js module?

... This should absolutely be the top answer. It does not require rewriting all existing modules with NODE_ENV specific exports, nor does it involve reading in the module as text. – Adam Yost Jul 22 '15 at 16:00 ...
https://stackoverflow.com/ques... 

How to write very long string that conforms with PEP8 and prevent E501

... Implicit concatenation might be the cleanest solution: s = "this is my really, really, really, really, really, really," \ " really long string that I'd like to shorten." Edit On reflection I agree that Todd's suggestion to use brackets rather than line continuation is better for all the reas...
https://stackoverflow.com/ques... 

Removing all non-numeric characters from string in Python

How do we remove all non-numeric characters from a string in Python? 7 Answers 7 ...
https://stackoverflow.com/ques... 

How to check version of python modules?

I just installed the python modules: construct and statlib with setuptools like this: 25 Answers ...
https://stackoverflow.com/ques... 

Elegant setup of Python logging in Django

...nowhere else. You can either use a configuration file or do it programmatically step-by-step - it just depends on your requirements. The key thing is that I usually add the handlers I want to the root logger, using levels and sometimes logging.Filters to get the events I want to the appropriate file...