大约有 40,000 项符合查询结果（耗时：0.0442秒） [XML]
Why #define TRUE (1==1) in a C boolean macro instead of simply as 1?
...s efficient, they're guaranteed to be portable, they'll pass even the strictest linters, and even new programmers will understand them.
Isn't that worth it?
share
|
improve this answer
|
...
What is a good reason to use SQL views?
...e roll-out:
1) Cold Turkey - Change the DB, and at the same time, change, test and release numerous pieces of code which contained said query. VERY hard to do (or even coordinate), very risky. Bad.
2) Gradual - change the DB by creating the T_NEW table, dropping the T_OLD table and instead creatin...
Moving average or running mean
...now works instead (very quickly I might add). for 6,000 row series %timeit test1.rolling(20).mean() returned 1000 loops, best of 3: 1.16 ms per loop
– Vlox
May 2 '17 at 17:41
...
Python: Select subset from list based on index set
...worrying about performance? Write what you have to do, if it is slow, then test to find bottlenecks.
– Gary Kerr
Jul 5 '10 at 11:39
1
...
How to get the current date/time in Java [duplicate]
....now( clock ).
Instant instant = Instant.now( yourClockGoesHere ) ;
For testing purposes, note the alternate implementations of Clock available statically from Clock itself: fixed, offset, tick, and more.
About java.time
The java.time framework is built into Java 8 and later. These classes su...
How to redirect Valgrind's output to a file?
...rder as is written in terminal ( i.e. to keep coherence between outputs of tested program and error reported by valgrind) ?
– Prokop Hapala
Jan 20 '19 at 11:14
add a comment
...
Why are only a few video games written in Java? [closed]
...ing.
[...snip...]
Write-once-run-anywhere. Ha. Hahahahaha. We are only testing on four platforms right now, and not a single pair has the exact same quirks. All the commercial games are tweaked and compiled individually for each (often 100+) platform. Portability is not a justification for the a...
What is the difference between Session.Abandon() and Session.Clear()
...n.Abandon is more like throwing away the whole shelf.
You say:
When I test Session, it doesn't makes any change when I Abandon the session.
This is correct while you are doing it within one request only.
On the next request the session will be different. But the session ID can be reused so t...
Looping in a spiral
...y+dx, x+dy # jump
yield x, y
x, y = x+dx, y+dy
Testing with:
print 'Spiral 3x3:'
for a,b in spiral(3,3):
print (a,b),
print '\n\nSpiral 5x3:'
for a,b in spiral(5,3):
print (a,b),
You get:
Spiral 3x3:
(0, 0) (1, 0) (1, 1) (0, 1) (-1, 1) (-1, 0) (-1, -1) (0, -1...
See “real” commit date in github (hour/day)
... for screenshots), the above Javascript-based solutions do not match the latest Github HTML (see comments). And they did not take into account the fact that the timestamps are auto-updated based on a timer ("X minutes ago" has to change every minute), so they will periodically reappear.
The followi...