大约有 46,000 项符合查询结果（耗时：0.0453秒） [XML]
Why not abstract fields?
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105
You can do what you described by having a final field in your abstract class that is initialise...
Scoping in Python 'for' loops
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109
The likeliest answer is that it just keeps the grammar simple, hasn't been a stumbling block fo...
Detect if a NumPy array contains at least one non-numeric value?
...ng and will work regardless of shape.
numpy.isnan(myarray).any()
Edit: 30x faster:
import timeit
s = 'import numpy;a = numpy.arange(10000.).reshape((100,100));a[10,10]=numpy.nan'
ms = [
'numpy.isnan(a).any()',
'any(numpy.isnan(x) for x in a.flatten())']
for m in ms:
print " %.2f s" ...
Make first letter of a string upper case (with maximum performance)
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answered Dec 10 '10 at 5:12
Carlos MuñozCarlos Muñoz
14.9k77 gold badges4848 silver badges7575 bronze badges
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Concatenating string and integer in python
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answered Jul 19 '12 at 10:43
user647772user647772
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How to parse unix timestamp to time.Time
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+500
The time.Parse function does not do Unix timestamps. Instead you can use strconv.ParseInt to parse the string to int64 and create the...
Regular expression to match a dot
...y.
– Jonathan Landrum
Jun 1 '18 at 20:09
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Using str_replace so that it only acts on the first match?
... T.Todua
41.4k1515 gold badges181181 silver badges170170 bronze badges
answered Aug 10 '09 at 0:43
karim79karim79
320k6060 gold ba...
Order by multiple columns with Doctrine
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answered Jul 20 '12 at 8:11
Diego AgullóDiego Agulló
8,03933 gold badges2323 silver badges3838 bronze badges
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Process all arguments except the first one (in a bash script)
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edited May 23 '17 at 10:31
Community♦
111 silver badge
answered Jan 29 '12 at 22:32
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