--- method_missing(name, args, ... )

    ƤӤ줿᥽åɤƤʤäRuby Υ᥽å
    ƤӽФޤƤӽФ˼Ԥ᥽åɤ̾ (Symbol) Ȥ
    λΰ name  arg ... Ϥޤ

    ǥեȤǤϤΥ᥽åɤ㳰 NameError ȯޤ

