gistfile1.rb

class Hash
  def method_missing(method, *params)
    #首先得把symbol转化成string,如h={}.h.a = 1,此时，method 就为:a=
    method_string = method.to_s
    if method_string[-1] == 61
      self[method_string[0..-2]] = params.first
    else
      self[method_string]
    end
  end
end