大约有 48,000 项符合查询结果(耗时:0.0885秒) [XML]

https://stackoverflow.com/ques... 

Good PHP ORM Library?

...ates everything on the fly) No models etc. It even does all the locking and transactions for you and monitors performance in the background. (Heck! it even does garbage collection....) Best of all... you don't have to write a single... line of code... Jesus this, ORM layer, saved me ass! ...
https://stackoverflow.com/ques... 

How can I profile Python code line-by-line?

I've been using cProfile to profile my code, and it's been working great. I also use gprof2dot.py to visualize the results (makes it a little clearer). ...
https://stackoverflow.com/ques... 

How to select the first element with a specific attribute using XPath

...n 17 '09 at 10:48 Jonathan FinglandJonathan Fingland 52k1111 gold badges7979 silver badges7777 bronze badges ...
https://stackoverflow.com/ques... 

What's the simplest way to test whether a number is a power of 2 in C++?

...will want to check for it explicitly. http://www.graphics.stanford.edu/~seander/bithacks.html has a large collection of clever bit-twiddling algorithms, including this one. share | improve this ans...
https://stackoverflow.com/ques... 

How to manage REST API versioning with spring?

... anything that is easy to maintain. I'll explain first the problem I have, and then a solution... but I do wonder if I'm re-inventing the wheel here. ...
https://stackoverflow.com/ques... 

Automatically expanding an R factor into a collection of 1/0 indicator variables for every factor le

I have an R data frame containing a factor that I want to "expand" so that for each factor level, there is an associated column in a new data frame, which contains a 1/0 indicator. E.g., suppose I have: ...
https://stackoverflow.com/ques... 

powershell - extract file name and extension

I need to extract file name and extension from e.g. my.file.xlsx. I don't know the name of file or extension and there may be more dots in the name, so I need to search the string from the right and when I find first dot (or last from the left), extract the part on the right side and the part on the...
https://stackoverflow.com/ques... 

How to find the kth largest element in an unsorted array of length n in O(n)?

... This is called finding the k-th order statistic. There's a very simple randomized algorithm (called quickselect) taking O(n) average time, O(n^2) worst case time, and a pretty complicated non-randomized algorithm (called introselect) taking O(n) worst case time. There's some info on Wikipedia, bu...
https://stackoverflow.com/ques... 

Meaning of “[: too many arguments” error from if [] (square brackets)

...t find any one simple straightforward resource spelling out the meaning of and fix for the following BASH shell error, so I'm posting what I found after researching it. ...
https://stackoverflow.com/ques... 

How do I compile and run a program in Java on my Mac?

How do I compile and run a program in Java on my mac? 5 Answers 5 ...