Scala で (1,"hoge1"),(2,"hoge2"),(3,"hoge3"),(1,"hoge4"),(2,"hoge5")... のように 1,2,3,1,2,3… の繰り返しと 何かを zip してくっつける val l = List(1,2,3) val sl = List("hoge1","hoge2","hoge3","hoge4","hoge5") Stream.continually(l).flatten.z…