大约有 47,000 项符合查询结果（耗时：0.0714秒） [XML]
Disable IPython Exit Confirmation
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answered Mar 1 '13 at 22:16
ErnestErnest
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How to switch position of two items in a Python list?
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answered Mar 22 '10 at 16:31
samtregarsamtregar
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How to get the list of all printers in computer
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edited Aug 22 '14 at 14:56
Arvo Bowen
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find -exec a shell function in Linux?
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edited Feb 22 '13 at 5:13
Alan W. Smith
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How to fix the uninitialized constant Rake::DSL problem on Heroku?
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Rotating videos with FFmpeg
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What is the purpose of XORing a register with itself? [duplicate]
...all with eax.
– kquinn
Sep 8 '09 at 22:16
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Actually, in the big picture it's faster. There are ...
Chrome developer tools: View Console and Sources views in separate views/vertically tiled?
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edited Dec 22 '13 at 10:23
answered May 14 '13 at 8:18
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Can dplyr package be used for conditional mutating?
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Use ifelse
df %>%
mutate(g = ifelse(a == 2 | a == 5 | a == 7 | (a == 1 & b == 4), 2,
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Select all child elements recursively in CSS
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answered Feb 5 '11 at 22:21
anroestianroesti
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