大约有 15,000 项符合查询结果（耗时：0.0405秒） [XML]
In Python, how can you load YAML mappings as OrderedDicts?
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The yaml module allow you to specify custom 'representers' to convert Python objects to text and 'constructors' to reverse the process.
_mapping_tag = yaml.resolver.BaseResolver.DEFAULT_MAPPING_TAG
def dict_representer(dumper, data):
return dumper.represent_dict(data.iteritems())
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Ruby regular expression using variable name
...It used to be that a string replacement argument to gsub was automatically converted to a regular expression. I know it was that way in 1.6. I don't recall which version introduced the change).
As noted in other answers, you can use Regexp.new as an alternative to interpolation:
var = "*This*"
s...
How can I divide two integers to get a double?
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Convert one of them to a double first. This form works in many languages:
real_result = (int_numerator + 0.0) / int_denominator
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How to find a min/max with Ruby
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In addition to the provided answers, if you want to convert Enumerable#max into a max method that can call a variable number or arguments, like in some other programming languages, you could write:
def max(*values)
values.max
end
Output:
max(7, 1234, 9, -78, 156)
=> 12...
How to link to part of the same document in Markdown?
... Thanks, this was exactly what I needed. I was using Textmate to convert Markdown to HTML, will switch to pandoc.
– recipriversexclusion
May 13 '10 at 3:08
1
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Print text instead of value from C enum
...ave human-readable strings for these, you will need to define functions to convert from enumerations to strings.
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'Microsoft.ACE.OLEDB.12.0' provider is not registered on the local machine
...bit shell:
(New-Object system.data.oledb.oledbenumerator).GetElements() | select SOURCES_NAME, SOURCES_DESCRIPTION
and you will see which provider your system can use
the long story:
the strings can be found with http://live.sysinternals.com/strings.exe
eg. on a 64bit System with 32bit drivers...
How to Use Order By for Multiple Columns in Laravel 4?
...t;orderBy('email', 'ASC')
->get();
Produces the following query:
SELECT * FROM `users` ORDER BY `name` DESC, `email` ASC
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Android Studio: Plugin with id 'android-library' not found
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Use
apply plugin: 'com.android.library'
to convert an app module to a library module. More info here: https://developer.android.com/studio/projects/android-library.html
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How to list all properties of a PowerShell object
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You can also use:
Get-WmiObject -Class "Win32_computersystem" | Select *
This will show the same result as Format-List * used in the other answers here.
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