大约有 47,000 项符合查询结果(耗时:0.0590秒) [XML]

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How can I get the current network interface throughput statistics on Linux/UNIX? [closed]

...phs for the current network utilisation on specific interfaces, such as eth0. How can I return that information at the command line on Linux/UNIX? ...
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List of zeros in python [duplicate]

...eros? I want to be able to create a zeros list for each int in range(10) 8 Answers ...
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How to select rows from a DataFrame based on column values?

... 10 Answers 10 Active ...
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Automatically expanding an R factor into a collection of 1/0 indicator variables for every factor le

...vel, there is an associated column in a new data frame, which contains a 1/0 indicator. E.g., suppose I have: 8 Answers ...
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Numbering rows within groups in a data frame

...| edited Mar 14 '17 at 22:06 Frank 62.4k88 gold badges8181 silver badges157157 bronze badges answered Oc...
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CSS3 Transparency + Gradient

...round-image: -webkit-gradient( linear, left top, left bottom, from(rgba(50,50,50,0.8)), to(rgba(80,80,80,0.2)), color-stop(.5,#333333) ); (src) /* mozilla example - FF3.6+ */ background-image: -moz-linear-gradient( rgba(255, 255, 255, 0.7) 0%, rgba(255, 255, 255, 0) 95% ); (src) Apparent...
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What is Bit Masking?

... 250 A mask defines which bits you want to keep, and which bits you want to clear. Masking is the ac...
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What is the most pythonic way to check if an object is a number?

...cimal import Decimal ... from fractions import Fraction ... for n in [2, 2.0, Decimal('2.0'), complex(2, 0), Fraction(2, 1), '2']: ... print(f'{n!r:>14} {isinstance(n, Number)}') 2 True 2.0 True Decimal('2.0') True (2+0j) True Fraction(2, 1) True ...
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Reverse colormap in matplotlib

... answered Jul 19 '10 at 11:45 ptomatoptomato 49.3k1111 gold badges9898 silver badges146146 bronze badges ...
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SQL Logic Operator Precedence: And and Or

...e's an example to illustrate: Declare @x tinyInt = 1 Declare @y tinyInt = 0 Declare @z tinyInt = 0 Select Case When @x=1 OR @y=1 And @z=1 Then 'T' Else 'F' End -- outputs T Select Case When (@x=1 OR @y=1) And @z=1 Then 'T' Else 'F' End -- outputs F For those who like to consult references (in al...