大约有 44,000 项符合查询结果（耗时：0.0493秒） [XML]
Remove all whitespaces from NSString
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303
stringByTrimmingCharactersInSet only removes characters from the beginning and the end of the ...
How to format a UTC date as a `YYYY-MM-DD hh:mm:ss` string using NodeJS?
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edited Dec 11 '13 at 15:38
answered Nov 4 '12 at 14:57
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How to calculate number of days between two dates
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answered Feb 3 '12 at 14:18
SuprSupr
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How to do exponential and logarithmic curve fitting in Python? I found only polynomial fitting
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230
For fitting y = A + B log x, just fit y against (log x).
>>> x = numpy.array([1, 7, 2...
Simulator slow-motion animations are now on?
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edited Apr 13 '15 at 5:29
answered Dec 24 '11 at 12:33
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Display an array in a readable/hierarchical format
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31
Try this:
foreach($data[0] as $child) {
echo $child . "\n";
}
in place of print_r($data)
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How do I set default values for functions parameters in Matlab?
...gainst the number of arguments. Something like:
function f(arg1, arg2, arg3)
if nargin < 3
arg3 = 'some default'
end
end
There are a few fancier things you can do with isempty, etc., and you might want to look at Matlab central for some packages that bundle these sorts of things.
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Why can tuples contain mutable items?
...the overall tuple isn't hashable either. For example, t = ('red', [10, 20, 30]) isn't hashable.
The last example shows a 2-tuple that contains a string and a list. The tuple itself isn't mutable (i.e. it doesn't have any methods that for changing its contents). Likewise, the string is immutable b...
Replace duplicate spaces with a single space in T-SQL
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329
Even tidier:
select string = replace(replace(replace(' select single spaces',' ','<...