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可否援引一个实例——模块的方法?
原标题:Can an instance_method of a Module be invoked?
  • 时间:2010-08-10 21:21:10
  •  标签:
  • ruby

这纯粹是理论上的。

module BleeTest
  def meth
    puts  foo 
  end
end

这部法律没有错误,但是否有可能援引“方法”方法?

在我看来,“方法”是一种无法即时使用的模块的典型方法。 但是,解释者为什么允许这一建筑?

最佳回答

当然是。 您可把<条码>Blee 试验<>/条码>成一个物体:

o = Object.new
o.extend BleeTest

o.meth
# foo

或您可将<条码>Blee 试验分为以下几类:

class C
  include BleeTest
end

o = C.new

o.meth
# foo

事实上,第一种形式也可以用第二种形式表述:

o = Object.new

class << o
  include BleeTest
end

o.meth
# foo

http://www.em>is。

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