大约有 40,000 项符合查询结果（耗时：0.0768秒） [XML]
Match whitespace but not newlines
...ghteen horizontal ones which match \h. \s matches twenty-three characters
All whitespace characters are either vertical or horizontal with no overlap, but they are not proper subsets because \h also matches U+00A0 NO-BREAK SPACE, and \v also matches U+0085 NEXT LINE, neither of which are matched by...
Get bitcoin historical data [closed]
...ocket in higher resolution over longer time period you could use script log_bitstamp_trades.py below.
The script uses python websocket-client and pusher_client_python libraries, so install them.
#!/usr/bin/python
import pusherclient
import time
import logging
import sys
import datetime
import sig...
How do I create an immutable Class?
I am working on creating an immutable class.
I have marked all the properties as read-only.
6 Answers
...
getting exception “IllegalStateException: Can not perform this action after onSaveInstanceState”
... working perfectly for API < 11, and Force Closing on API > 11.
I really couldn't figure out what they changed inside the Activity lifecycle in the call to saveInstance, but I here is how I solved this :
@Override
protected void onSaveInstanceState(Bundle outState) {
//No call for super(...
Convert RGB to RGBA over white
...u can solve:
a = (x - x')/(255 - x') x' = (x - 255 a)/(1 - a)
Etc. In real values this has infinitely many solutions, just plug in any real number a, but the problem is to find a number for which the discretization error is minimal.
...
How can I split and parse a string in Python?
I am trying to split this string in python: 2.7.0_bf4fda703454
3 Answers
3
...
Java: when to use static methods
... static method that is using some external resource (filesystem, database, etc) this type of static can make it horrendous to test the consuming methods. I personally try to keep statics in the realm of "utility."
– Seth M.
Apr 7 '14 at 13:50
...
Pythonic way to combine FOR loop and IF statement
...>>> xyz = [0, 12, 4, 6, 242, 7, 9]
>>>
>>> known_things = sorted(set(a.iterkeys()).intersection(xyz))
>>> unknown_things = sorted(set(xyz).difference(a.iterkeys()))
>>>
>>> for thing in known_things:
... print 'I know about', a[thing]
...
I k...
What is a “thread” (really)?
...is loaded in the processor core, the thread is running. The processor is fetching instructions demanded by the thread and updating the thread registers. When a context switch is needed, the processor saves this set of register values into memory and loads a set belonging to a different thread, typ...
Why doesn't a python dict.update() return the object?
... the keyword ones, and bereft of the ** form -- dict(award_dict, name=name etc etc).
share
|
improve this answer
|
follow
|
...