最終回です。 前回 eval class AAA def get_binding binding end def aaa @aaa end end aaa = AAA.new aaa.aaa # => nil aaa.bbb # NameError: uninitialized class variable @@bbb in AAA aaa.get_binding # => #<Binding:0x00000002a16ab0> eval("@aaa=123",aaa.get_binding) aaa.aaa</binding:0x00000002a16ab0>…