大约有 47,000 项符合查询结果（耗时：0.0359秒） [XML]
Identifying and removing null characters in UNIX
...
8 Answers
8
Active
...
Most efficient way to reverse a numpy array
...
stevehasteveha
64.4k1616 gold badges8181 silver badges109109 bronze badges
...
Bitwise operation and usage
...ur in Python, you can follow a left shift with a bitwise and such as in an 8-bit value shifting left four bits:
bits8 = (bits8 << 4) & 255
With that in mind, another example of bitwise operators is if you have two 4-bit values that you want to pack into an 8-bit one, you can use all thr...
What are your favorite extension methods for C#? (codeplex.com/extensionoverflow)
...are
answered May 7 '09 at 8:29
community wiki
W...
When to use: Java 8+ interface default method, vs. abstract method
Java 8 allows for default implementation of methods in interfaces called Default Methods .
15 Answers
...
What is the “-->” operator in C++?
...ed that the following snippet compiled and worked in both Visual Studio 2008 and G++ 4.4.
25 Answers
...
How to manually install an artifact in Maven 2?
...
|
edited Nov 28 '12 at 0:30
Charles Duffy
219k3232 gold badges273273 silver badges333333 bronze badges
...
Why do I get the error “Unsafe code may only appear if compiling with /unsafe”?
...
answered Jan 8 '10 at 9:07
GuffaGuffa
619k9090 gold badges651651 silver badges926926 bronze badges
...
Rails: Adding an index after adding column
...
answered Apr 8 '13 at 14:31
Jaap HaagmansJaap Haagmans
5,48211 gold badge2222 silver badges2929 bronze badges
...
How to make a flat list out of list of lists?
...e in the standard library:
$ python -mtimeit -s'l=[[1,2,3],[4,5,6], [7], [8,9]]*99' '[item for sublist in l for item in sublist]'
10000 loops, best of 3: 143 usec per loop
$ python -mtimeit -s'l=[[1,2,3],[4,5,6], [7], [8,9]]*99' 'sum(l, [])'
1000 loops, best of 3: 969 usec per loop
$ python -mtimei...