http://docs.ruby-lang.org/ja/1.9.3/doc/spec=2foperator.html 多重代入例:foo, bar, baz = 1, 2, 3 foo, = list() foo, *rest = list2()文法:式 [`,' [式 `,' ... ] [`*' [式]]] = 式 [, 式 ... ][`*' 式] `*' [式] = 式 [, 式 ... ][`*' 式]多重代入は複…