大约有 47,000 项符合查询结果（耗时：0.0276秒） [XML]
How do you create different variable names while in a loop? [duplicate]
For example purposes...
10 Answers
10
...
UIButton Image + Text IOS
... too. If your title is not showing up, try setting a negative left offset for it. It looks like IB automatically pushes it out to the right of the image.
– brians
Jan 2 '13 at 22:20
...
C++ display stack trace on exception
...
It depends which platform.
On GCC it's pretty trivial, see this post for more details.
On MSVC then you can use the StackWalker library that handles all of the underlying API calls needed for Windows.
You'll have to figure out the best way to...
Rails: around_* callbacks
...t understand when the around_* callbacks are triggered in relation to before_* and after_* .
2 Answers
...
Finding all possible combinations of numbers to reach a given sum
...rget:
return # if we reach the number why bother to continue
for i in range(len(numbers)):
n = numbers[i]
remaining = numbers[i+1:]
subset_sum(remaining, target, partial + [n])
if __name__ == "__main__":
subset_sum([3,9,8,4,5,7,10],15)
#Outputs:
...
Aren't Python strings immutable? Then why does a + “ ” + b work?
...
@delnan and so, what? For the sake of showing that strings and lists behave differently you can assume that a = a+"Foo" is the same as a.append(something). In any case it's not the same. Obviously. Were you happier reading a.extend([something]) in...
Should private helper methods be static if they can be static
...
@James or simply static (if we just want it for testing).
– mrod
Mar 8 '16 at 11:33
3
...
Calculating frames per second in a game
What's a good algorithm for calculating frames per second in a game? I want to show it as a number in the corner of the screen. If I just look at how long it took to render the last frame the number changes too fast.
...
Hash function that produces short hashes?
...mply truncate the result to the desired length, which may be good enough.
For example, in Python:
>>> import hashlib
>>> hash = hashlib.sha1("my message".encode("UTF-8")).hexdigest()
>>> hash
'104ab42f1193c336aa2cf08a2c946d5c6fd0fcdb'
>>> hash[:10]
'104ab42f11'
...
How to printf uint64_t? Fails with: “spurious trailing ‘%’ in format”
...these macros must only be defined if explicitly requested.
#define __STDC_FORMAT_MACROS
#include <inttypes.h>
... now PRIu64 will work
share
|
improve this answer
|
...