e5.4-2.rb

来自「《Ruby语言中文教程》 RUBY的中文教程比较难找」· RB 代码 · 共 14 行

#   E5.4-2.rb    
class Person    
  def talk
    puts "Today is Saturday. "    
  end  
end

p1=Person.new
p1.talk

class Person    
  undef :talk
end
#p1.talk