大约有 13,700 项符合查询结果(耗时:0.0291秒) [XML]
ie8 var w= window.open() - “Message: Invalid argument.”
...soft only allows the following arguments, If using that argument at all:
_blank
_media
_parent
_search
_self
_top
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What are some good Python ORM solutions? [closed]
...oreignKeyField(Blog)
title = CharField()
body = TextField()
pub_date = DateTimeField(default=datetime.datetime.now)
# query it like django
Entry.filter(blog__name='Some great blog')
# or programmatically for finer-grained control
Entry.select().join(Blog).where(Blog.name == 'Some aweso...
Should you always favor xrange() over range()?
...kipping implicit fixer: idioms
RefactoringTool: Skipping implicit fixer: ws_comma
--- range_test.py (original)
+++ range_test.py (refactored)
@@ -1,7 +1,7 @@
for x in range(20):
- a=range(20)
+ a=list(range(20))
b=list(range(20))
c=[x for x in range(20)]
d=(x for x in range(20...
Count the number occurrences of a character in a string
...quently, check out collections.Counter:
from collections import Counter
my_str = "Mary had a little lamb"
counter = Counter(my_str)
print counter['a']
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Add params to given URL in Python
...koverflow.com/search?q=question"
params = {'lang':'en','tag':'python'}
url_parts = list(urlparse.urlparse(url))
query = dict(urlparse.parse_qsl(url_parts[4]))
query.update(params)
url_parts[4] = urlencode(query)
print(urlparse.urlunparse(url_parts))
ParseResult, the result of urlparse(), is rea...
How to simulate target=“_blank” in JavaScript
...
<script>
window.open('http://www.example.com?ReportID=1', '_blank');
</script>
The second parameter is optional and is the name of the target window.
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Disable assertions in Python
...umentation:
An assert statement like this:
assert expression #, optional_message
Is equivalent to
if __debug__:
if not expression: raise AssertionError #(optional_message)
And,
the built-in variable __debug__ is True under normal circumstances, False when optimization is requested...
ARC and bridged cast
...ription is confusing. Since I just grasped them, I'll try to summarize:
(__bridge_transfer <NSType>) op or alternatively CFBridgingRelease(op) is used to consume a retain-count of a CFTypeRef while transferring it over to ARC. This could also be represented by id someObj = (__bridge <NSTy...
Get hours difference between two dates in Moment Js
...ent('2016-06-06T22:34:56'); var b = moment('2016-06-06T21:03:55'); var diff_s = a.diff(b, 'seconds'); console.log(moment.utc(moment.duration(diff_s, "seconds").asMilliseconds()).format("hh:mm:ss"))
– user632905
Jul 12 at 15:35
...
How many GCC optimization levels are there?
...lear on the man page.
We shall conclude that:
anything above -O3 up to INT_MAX is the same as -O3, but that could easily change in the future, so don't rely on it.
GCC 5.1 runs undefined behavior if you enter integers larger than INT_MAX.
the argument can only have digits, or it fails gracefully. I...