什么是ruby中的__repr__等价？-What'sthe__repr__equivalenceinruby?

The __repr__ function of python is fancy as it is called when print OBJECT is used automatically.

python的__repr__函数很自然,因为在自动使用print OBJECT时会调用它。

Is there a ruby equivalence for it? I thought it was to_s, but, I had p OBJECT doesn't seem to call the to_s method.

它有红宝石等价吗?我以为是to_s,但是,我有p OBJECT似乎没有调用to_s方法。

Added

I got something wrong, p OBJECT seems to call to_s method as follows. I got some hints from my the answers to my other question. - Ruby's to_s method question (from Axe book 2nd edition)

我弄错了,p OBJECT似乎调用to_s方法如下。我从我对其他问题的答案中得到了一些提示。 - Ruby的to_s方法问题(来自Axe第2版)

# Sample code from Programing Ruby, page 24
class Song
  def to_s
    "Song"
  end
end

class Songson "
  end
end

sOng= Songson.new()
p song

2 个解决方案

  obj.inspect => string

   [ 1, 2, 3..4, 'five' ].inspect   #=> "[1, 2, 3..4, \"five\"]"
   Time.new.inspect                 #=> "Wed Apr 09 08:54:39 CDT 2003"

 obj.to_s => string