试了试mixmi功能

发表时间：2007年5月6日 1时14分24秒        评论/阅读(0/0)
嗯.书太厚了点,看到了第十章.想动动手了.
动态语言的特性真是丰富.我们可以做的事情太多了.哈哈!!


module Debug
  def who_am_i
    "#{self.class.name} (\##{self.object_id}): #{self.to_s}"
  end
end
class Object
  def self.inherited(subclass)
   puts "New subclass: #{subclass}"
  end
end
class Phonograph
  include Debug
  def to_s
    " I'm Phonograph"
  end
end
class EightTrack
 
  include Debug
  include Enumerable
  def to_s
    " I'm EightTrack"
  end
 
  def each
    yield 1
    yield 2
    yield 3
  end
end

ph = Phonograph.new
et = EightTrack.new
puts(ph.who_am_i)
puts(et.who_am_i)
et.each {|x| puts x}
puts et.select{|x| x > 1}
puts et.include?(1)
puts et.inject{|x,y| x*y}