大约有 47,000 项符合查询结果（耗时：0.0676秒） [XML]
iphone ios running in separate thread
...
In my opinion, the best way is with libdispatch, aka Grand Central Dispatch (GCD). It limits you to iOS 4 and greater, but it's just so simple and easy to use. The code to do som>me m> processing on a background thread and then do so...
Portable way to get file size (in bytes) in shell?
...
wc -c < filenam>me m> (short for word count, -c prints the byte count) is a portable, POSIX solution. Only the output format might not be uniform across platforms as som>me m> spaces may be prepended (which is the case for Solaris).
Do not omit the...
ASP.NET web.config: configSource vs. file attributes
Within an web.config -file in an ASP.NET-application som>me m> sections of config, like appSettings and connectionStrings , supports the attributes file and configSource .
...
How does a Linux/Unix Bash script know its own PID?
...
share
|
improve this answer
|
follow
|
answered Mar 22 '10 at 15:53
Paul TomblinPau...
How to sort an array of hashes in ruby
I have an array, each of whose elem>me m>nts is a hash with three key/value pairs:
5 Answers
...
Calculating width from percent to pixel then minus by pixel in LESS CSS
I will calculate width in som>me m> elem>me m>nt from percent to pixel so I will minus -10px via using LESS and calc() . It´s possible?
...
Numpy index slice without losing dim>me m>nsion information
I'm using numpy and want to index a row without losing the dim>me m>nsion information.
6 Answers
...
Is it possible to use 'else' in a list comprehension? [duplicate]
... true - otherwise, it evaluates to c. It can be used in comprehension statem>me m>nts:
>>> [a if a else 2 for a in [0,1,0,3]]
[2, 1, 2, 3]
So for your example,
table = ''.join(chr(index) if index in ords_to_keep else replace_with
for index in xrange(15))
...
Favorite way to create an new IEnum>me m>rable sequence from a single value?
I usually create a sequence from a single value using array syntax, like this:
4 Answers
...
Python using enum>me m>rate inside list comprehension
...
Try this:
[(i, j) for i, j in enum>me m>rate(mylist)]
You need to put i,j inside a tuple for the list comprehension to work. Alternatively, given that enum>me m>rate() already returns a tuple, you can return it directly without unpacking it first:
[pair for pair in...