大约有 47,000 项符合查询结果（耗时：0.0396秒） [XML]
json_encode/json_decode - returns stdClass instead of Array in PHP
...
7 Answers
7
Active
...
Bash tool to get nth line from a file
Is there a "canonical" way of doing that? I've been using head -n | tail -1 which does the trick, but I've been wondering if there's a Bash tool that specifically extracts a line (or a range of lines) from a file.
...
Find the extension of a filename in Ruby
I'm working on the file upload portion of a Rails app. Different types of files are handled differently by the app.
4 Answ...
How to make blinking/flashing text with CSS 3
Currently, I have this code:
10 Answers
10
...
How do you generate dynamic (parameterized) unit tests in python?
I have some kind of test data and want to create a unit test for each item. My first idea was to do it like this:
25 Answer...
Why is \r a newline for Vim?
From question How to replace a character for a newline in Vim? . You have to use \r when replacing text for a newline, like this
...
Relationship between SciPy and NumPy
SciPy appears to provide most (but not all [1]) of NumPy's functions in its own namespace. In other words, if there's a function named numpy.foo , there's almost certainly a scipy.foo . Most of the time, the two appear to be exactly the same, oftentimes even pointing to the same function object.
...
Speed comparison with Project Euler: C vs Python vs Erlang vs Haskell
I have taken Problem #12 from Project Euler as a programming exercise and to compare my (surely not optimal) implementations in C, Python, Erlang and Haskell. In order to get some higher execution times, I search for the first triangle number with more than 1000 divisors instead of 500 as stated...
How to sort with a lambda?
I'd like to use a lambda function to sort custom classes in place of binding an instance method. However, the code above yields the error:
...
Append TimeStamp to a File Name
I have come across this problem several times in which I would like to have multiple versions of the same file in the same directory. The way I have been doing it using C# is by adding a time stamp to the file name with something like this DateTime.Now.ToString().Replace('/', '-').Replace(':', '.')...