测量单位是F＃特有的吗？ [英] Are units of measurement unique to F#?

问题描述

我正在阅读安德鲁肯尼迪的博客文章系列 F＃中的度量单位，这在很多情况下很有意义。有没有其他语言有这样的系统？编辑：更清楚地说，我的意思是灵活的测量系统单位，您可以任意定义您自己的系统。

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解决方案

TI-89 BASIC是否计数？输入 54_kg *（_c ^ 2），它会给你一个以焦耳为单位的答案。

除此之外，我不记得任何内置的语言，但任何带有体面的OO的语言都应该让你自己的语言变得简单。这意味着其他人可能已经做了。

Google确认。例如，这是Python中的一个。可以很容易地修改 __ repr __ 以选择最合适的派生单位等。

CPAN有几个Perl模块：物理::单元，< a href =http://search.cpan.org/~ajgough/Data-Dimensions-0.04/lib/Data/Dimensions.pm =nofollow noreferrer> Data :: Dimensions ， Class :: Measure ， Math :: Units :: PhysicalValue ，以及其他一些会转换，但不会真正将价值与单位结合。

I was reading Andrew Kennedy's blog post series on units of measurement in F# and it makes a lot of sense in a lot of cases. Are there any other languages that have such a system?

Edit: To be more clear, I mean the flexible units of measurement system where you can define your own arbitrarily.

解决方案

Does TI-89 BASIC count? Enter 54_kg * (_c^2) and it will give you an answer in joules.

Other than that, I can't recall any languages that have it built in, but any language with decent OO should make it simple to roll your own. Which means someone else probably already did.

Google confirms. For example, here's one in Python. __repr__ could easily be amended to also select the most appropriate derived unit, etc.

CPAN has several modules for Perl: Physics::Unit, Data::Dimensions, Class::Measure, Math::Units::PhysicalValue, and a handful of others that will convert but don't really combine values with units.

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