大约有 16,000 项符合查询结果（耗时：0.0265秒） [XML]
Web scraping with Python [closed]
... BeautifulSoup
soup = BeautifulSoup(urllib2.urlopen('http://example.com').read())
for row in soup('table', {'class': 'spad'})[0].tbody('tr'):
tds = row('td')
print tds[0].string, tds[1].string
# will print date and sunrise
...
The Concept of 'Hold space' and 'Pattern space' in sed
...
When sed reads a file line by line, the line that has been currently read is inserted into the pattern buffer (pattern space). Pattern buffer is like the temporary buffer, the scratchpad where the current information is stored. When y...
How to add a Timeout to Console.ReadLine()?
...suffer from one or more of the following problems:
A function other than ReadLine is used, causing loss of functionality. (Delete/backspace/up-key for previous input).
Function behaves badly when invoked multiple times (spawning multiple threads, many hanging ReadLine's, or otherwise unexpected be...
How to drop into REPL (Read, Eval, Print, Loop) from Python code
...
When you're ready to switch to the dark side, ipython -i program.py is there for you.
– joeforker
Sep 9 '09 at 20:26
...
How to get started on TDD with Ruby on Rails? [closed]
...
What Ruby on Rails TDD 101 article should I read?
I will start with a guide to testing rails applications.
Also Railscast has some excellent screencasts about how to use different testing tools.
What do I need to test?
I will start with models, since they are...
How do I base64 encode (decode) in C?
...ng from -128 to 127. Any character with the high bit set will cause you to read outside the allocated memory. Forcing the data lookup to be an unsigned char clears that up. You still get garbage out for garbage in, but you won't segfault.
– bitmusher
Feb 12 '13...
Why is the asterisk before the variable name, rather than after the type?
...
@BobbyShaftoe Agreed. Even after reading every argument in here, I'm sticking with int* someVar for personal projects. It makes more sense.
– Alyssa Haroldsen
Feb 27 '14 at 23:34
...
Change private static final field using Java reflection
...f the object are updated. The object should not be made visible to other threads, nor should the final fields be read, until all updates to the final fields of the object are complete. Freezes of a final field occur both at the end of the constructor in which the final field is set, and immediately ...
Change font color for comments in vim
...r comments which is dark blue to slightly yellow color. It is difficult to read on the black background.
Could you advise me how to change only this one color? I'm satisfied with the other colors.
...
Tactics for using PHP in a high-load site
...p. Replicating to additional servers typically works well if you have more reads than writes. Sharding is a technique to split your data over many machines.
Caching
You probably don't want to cache in your database. The database is typically your bottleneck, so adding more IO's to it is typicall...