大约有 19,600 项符合查询结果(耗时:0.0364秒) [XML]

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Selecting pandas column by location

... You could use label based using .loc or index based using .iloc method to do column-slicing including column ranges: In [50]: import pandas as pd In [51]: import numpy as np In [52]: df = pd.DataFrame(np.random.rand(4,4), columns = list('abcd...
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Gridview height gets cut

...sExpanded = false; public ExpandableHeightGridView(Context context) : base(context) { } public ExpandableHeightGridView(Context context, IAttributeSet attrs) : base(context, attrs) { } public ExpandableHeightGridView(Context context, IAttributeS...
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Why do results vary based on curly brace placement?

.... An example from my blog post about this (Javascript – almost not line based): If you format the code like this: function getAnswer() { var answer = 42; return answer; } Then it is interpreted like this: function getAnswer() { var answer = 42; return; answer; } The retur...
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Generating v5 UUID. What is name and namespace?

... clearly not ideal. This is where the hierarchy comes in: you create one "base" UUID (of whatever type), and then use that as a namespace for naming your other namespaces! That way, you only have to publish the base UUID (or use an obvious one), and everyone can calculate the rest. For instance, ...
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Calling a static method on a generic type parameter

...d the CLR) do not support virtual static methods. So: T.StaticMethodOnSomeBaseClassThatReturnsCollection ...can be no different than: SomeBaseClass.StaticMethodOnSomeBaseClassThatReturnsCollection Going through the generic type parameter is an unneeded indirection and hence not supported. ...
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How to resize Twitter Bootstrap modal dynamically based on the content

I have database content which has different types of data, such as Youtube videos, Vimeo videos, text, Imgur pictures, etc. All of them have different heights and widths. All I have found while searching the Internet is changing the size to only one parameter. It has to be same as the content in the...
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Cutting the videos based on start and end time using ffmpeg

...in the OSD with --osd-fractions old answer with explanation (slow) To cut based on start and end time from the source video and avoid having to do math, specify the end time as the input option and the start time as the output option. ffmpeg -t 1:00 -i input.mpg -ss 45 output.mpg This will produce...
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Exit Shell Script Based on Process Exit Code

I have a shell script that executes a number of commands. How do I make the shell script exit if any of the commands exit with a non-zero exit code? ...
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Difference between Hive internal tables and external tables?

... Hive has a relational database on the master node it uses to keep track of state. For instance, when you CREATE TABLE FOO(foo string) LOCATION 'hdfs://tmp/';, this table schema is stored in the database. If you have a partitioned table, the partition...
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Forward declaration of nested types/classes in C++

... In C++11 you can inherit constructors by using basename::basename; in the derived class, thus no problem with complicated ctors. – Xeo Nov 7 '11 at 1:27 ...