大约有 30,200 项符合查询结果（耗时：0.0360秒） [XML]
Return first match of Ruby regex
... LitmusLitmus
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Rails.env vs RAILS_ENV
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jgpawletkojgpawletko
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Get current stack trace in Ruby without raising an exception
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Serjik
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answered Nov 7 '16 at 12:54
Rajat BansalRajat B...
Adding a y-axis label to secondary y-axis in matplotlib
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The best way is to interact with the axes object directly
import numpy as np
import matplotli...
Do fragments really need an empty constructor?
...ts.
– Chris.Jenkins
Feb 4 '13 at 12:24
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@Chris.Jenkins Well, that, then, was my ignorance of Par...
T-SQL stored procedure that accepts multiple Id values
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PortmanPortman
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Pandas: create two new columns in a dataframe with values calculated from a pre-existing column
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%timeit df["A1"], df["A2"] = zip(*df["a"].apply(calculate))
159 ms ± 5.24 ms per loop (mean ± std. dev. of 7 runs, 10 loops each)
60x faster than zip
In general, avoid using apply
Apply is generally not much faster than iterating over a Python list. Let's test the performance of a for-loo...
Newline in JLabel
...00/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 47.7169 7.36433 48.0099 7.26993C48.9099 6.97997 49.672 6.73443 49.672 5.93063C49.672 5.22043 48.9832 4.61182 48.1414 4.61182C47.4335 4.61182 46.7256 4.91628 46.0943 5.50789C45.7307 4.9328 45...
Update a local branch with the changes from a tracked remote branch
...00/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 47.7169 7.36433 48.0099 7.26993C48.9099 6.97997 49.672 6.73443 49.672 5.93063C49.672 5.22043 48.9832 4.61182 48.1414 4.61182C47.4335 4.61182 46.7256 4.91628 46.0943 5.50789C45.7307 4.9328 45...
Regex lookahead for 'not followed by' in grep
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edited Dec 19 '17 at 17:24
answered Jan 6 '16 at 3:50
dou...