大约有 43,700 项符合查询结果（耗时：0.0465秒） [XML]
Batch file. Delete all files and folders in a directory
...
|
edited May 23 '14 at 12:51
DontVoteMeDown
18.9k99 gold badges6161 silver badges9393 bronze badges
...
Scala list concatenation, ::: vs ++
...
325
Legacy. List was originally defined to be functional-languages-looking:
1 :: 2 :: Nil // a lis...
Email Address Validation in Android on EditText [duplicate]
...erns.EMAIL_ADDRESS.matcher(this).matches()
Edit: It will work On Android 2.2+ onwards !!
Edit: Added missing ;
share
|
improve this answer
|
follow
|
...
How to count total lines changed by a specific author in a Git repository?
...
24 Answers
24
Active
...
How to convert a unix timestamp (seconds since epoch) to Ruby DateTime?
...must be converted to a string:
require 'date'
DateTime.strptime("1318996912",'%s')
share
|
improve this answer
|
follow
|
...
How can I use numpy.correlate to do autocorrelation?
... result = numpy.correlate(x, x, mode='full')
return result[result.size/2:]
You will, of course, need error checking to make sure that x is actually a 1-d array. Also, this explanation probably isn't the most mathematically rigorous. I've been throwing around infinities because the definition o...
Get the week start date and week end date from week number
...
162
You can find the day of week and do a date add on days to get the start and end dates..
DATEADD...
Find region from within an EC2 instance
...
28 Answers
28
Active
...
What are “named tuples” in Python?
...
1224
Named tuples are basically easy-to-create, lightweight object types. Named tuple instances ca...
Test if a vector contains a given element
...
521
Both the match() (returns the first appearance) and %in% (returns a Boolean) functions are desi...