How do I set an attr_accessor for a dynamic instance variable?

I dynamically created an instance variable within my class: class Mine attr_accessor :some_var def intialize @some_var = true end def my_number num self.instance_variable_set "@my_#{num}", num end end How do I make @my_#{num} now as an attr value? e.g. I want to be able to do this: dude = Mine.new dude.my_number 1 dude.my_1 => 1

[fenrir-naru]

attr_accessor :hogeはsend("hoge=", rhs)で書き込める