大约有 43,000 项符合查询结果（耗时：0.0456秒） [XML]
What Computer Science concepts should I know? [closed]
...
Basic programming (including recursion, file I/O, formatted output, loops etc)
Object oriented design (including design patterns etc). You should be able to produce sensible OO designs as well as understanding the concepts.
Scripting and regexes.
Data structures -- lists, sets, hashtables, trees, g...
How can I safely create a nested directory?
...rectory due to other factors, such as insufficient permissions, full disk, etc.
One option would be to trap the OSError and examine the embedded error code (see Is there a cross-platform way of getting information from Python’s OSError):
import os, errno
try:
os.makedirs(directory)
except O...
Accessing MP3 metadata with Python [closed]
...etAlbum()
print tag.getTitle()
Read an mp3 file (track length, bitrate, etc.) and access it's tag:
if eyeD3.isMp3File(f):
audioFile = eyeD3.Mp3AudioFile(f)
tag = audioFile.getTag()
Specific tag versions can be selected:
tag.link("/some/file.mp3", eyeD3.ID3_V2)
tag.link("/some/file...
How to install trusted CA certificate on Android device?
...rsion Gingerbread & Froyo, there was a single read-only file ( /system/etc/security/cacerts.bks ) containing the trust store with all the CA ('system') certificates trusted by default on Android. Both system apps and all applications developed with the Android SDK use this. Use these instruction...
How do I get a Cron like scheduler in Python? [closed]
...y().hour.do(job) does this run every clock hour? Like 01:00, 02:00, 03:00, etc.? even if the start time isn't a full hour?
– swateek
Nov 10 '16 at 10:59
1
...
How to set up a cron job to run an executable every hour?
... you're using Ubuntu, you can put a shell script in one of these folders: /etc/cron.daily, /etc/cron.hourly, /etc/cron.monthly or /etc/cron.weekly.
For more detail, check out this post: https://askubuntu.com/questions/2368/how-do-i-set-up-a-cron-job
...
Using Pairs or 2-tuples in Java [duplicate]
...ions of how to design this class further regarding equality, immutability, etc., especially if you plan to use instances as keys for hashing.
share
|
improve this answer
|
fo...
Is it possible to set UIView border properties from interface builder?
Is it possible to control UIView border properties (color, thickness, etc...) directly from interface builder or I can only do it programmatically?
...
What scalability problems have you encountered using a NoSQL data store? [closed]
...ap them to our Java object model, that's with everything correctly indexed etc.
Storing them as key/value pairs using a lightweight text representation: 1 table, 18,000 rows, 3 seconds to retrieve them all and reconstruct the Java objects.
In business terms: first option was not feasible. Second o...
Change the maximum upload file size
...
On Linux, it's usually in /etc/php/ or something along those lines. If you're on a shared server, you're out of luck unless your hosting provider is generous enough to provide a per-user php.ini file.
– Johannes Gorset
...