大约有 5,570 项符合查询结果（耗时：0.0292秒） [XML]
Returning first x items from array
... items than the array has, it simply returns the entire array.
numbers[0..100] # => [1,2,3,4,5,6]
share
|
improve this answer
|
follow
|
...
What makes JNI calls slow?
...e cost can be linear in the size of the array. I measured JNI copying of a 100,000 array to average about 75 microseconds on my Windows desktop, and 82 microseconds on Mac. Fortunately, direct access may be obtained via GetPrimitiveArrayCritical or NewDirectByteBuffer.
If the method is passed an obj...
break out of if and foreach
...ent use return instead of break or continue.
<?php
for ($i=0; $i < 100; $i++) {
if (i%2 == 0) {
include(do_this_for_even.php);
}
else {
include(do_this_for_odd.php);
}
}
?>
If you want to break when being inside do_this_for_even.php you need to use retu...
Can someone copyright a SQL query? [closed]
... guy, "Look, this situation is ridiculous. I'll buy this code off you for $100. Or I can reimplement it myself in a couple hours. Your choice."
– Jason Orendorff
Dec 3 '09 at 16:09
...
What's the difference between django OneToOneField and ForeignKey?
...ame
class Article(models.Model):
title = models.CharField(max_length=100)
reporter = models.ForeignKey(Reporter)
def __unicode__(self):
return self.title
Run python manage.py syncdb to execute the sql code and build the tables for your app in your database. Then use python m...
Working with Enums in android
...
Android Performance Patterns: The price of ENUMs (100 Days of Google Dev)
– Afriza N. Arief
Nov 4 '15 at 6:56
...
What is PostgreSQL explain telling me exactly?
...s its entire input. See the EXPLAIN SELECT * FROM tenk1 WHERE unique1 < 100 AND unique2 > 9000 LIMIT 2; example in Postgres EXPLAIN documentation.
In the example above, startup time is zero for both components, because neither component needs to do any processing before it starts writing rows...
When is a function too long? [closed]
35 lines, 55 lines, 100 lines, 300 lines? When you should start to break it apart? I'm asking because I have a function with 60 lines (including comments) and was thinking about breaking it apart.
...
What is the standard Python docstring format? [closed]
...the square of n, accepting all numeric types:
>>> sq(10)
100
>>> sq(10.434)
108.86835599999999
Raises a TypeError when input is invalid:
>>> sq(4*'435')
Traceback (most recent call last):
...
TypeError: can't multiply sequence by n...
Get the closest number out of an array
I have a number from minus 1000 to plus 1000 and I have an array with numbers in it. Like this:
20 Answers
...