大约有 42,000 项符合查询结果(耗时:0.0713秒) [XML]

https://stackoverflow.com/ques... 

StringIO in Python3

I am using Python 3.2.1 and I can't import the StringIO module. I use io.StringIO and it works, but I can't use it with numpy 's genfromtxt like this: ...
https://stackoverflow.com/ques... 

How to decide font color in white or black depending on background color?

... conversion here, they're easy to look up. Once you have the intensities for the individual colors, you can determine the overall intensity of the color and choose the corresponding text. if (red*0.299 + green*0.587 + blue*0.114) > 186 use #000000 else use #ffffff The threshold of 186 is base...
https://stackoverflow.com/ques... 

Advantages of using display:inline-block vs float:left in CSS

Normally, when we want to have multiple DIVs in a row we would use float: left , but now I discovered the trick of display:inline-block ...
https://stackoverflow.com/ques... 

What is setup.py?

Can anyone please explain what setup.py is and how it can be configured or used? 10 Answers ...
https://stackoverflow.com/ques... 

Difference between volatile and synchronized in Java

... It's important to understand that there are two aspects to thread safety. execution control, and memory visibility The first has to do with controlling when code executes (including the order in which instructions are executed)...
https://stackoverflow.com/ques... 

Common use-cases for pickle in Python

...ed (persistence) 2) sending python data over a TCP connection in a multi-core or distributed system (marshalling) 3) storing python objects in a database 4) converting an arbitrary python object to a string so that it can be used as a dictionary key (e.g. for caching & memoization). There ar...
https://stackoverflow.com/ques... 

General guidelines to avoid memory leaks in C++ [closed]

What are some general tips to make sure I don't leak memory in C++ programs? How do I figure out who should free memory that has been dynamically allocated? ...
https://stackoverflow.com/ques... 

Show which git tag you are on?

... Edit: Jakub Narębski has more git-fu. The following much simpler command works perfectly: git describe --tags (Or without the --tags if you have checked out an annotated tag. My tag is lightweight, so I need the --tags.) original answer follows: ...
https://stackoverflow.com/ques... 

How does the Google “Did you mean?” Algorithm work?

I've been developing an internal website for a portfolio management tool. There is a lot of text data, company names etc. I've been really impressed with some search engines ability to very quickly respond to queries with "Did you mean: xxxx". ...
https://stackoverflow.com/ques... 

How to use Regular Expressions (Regex) in Microsoft Excel both in-cell and loops

...pressions in Excel and take advantage of Excel's powerful grid-like setup for data manipulation? 9 Answers ...