数字の出力 lesson002.scala for {i <- 1 to 10} println(i)実行結果 T:\>scala lesson002.scala 1 2 3 4 5 6 7 8 9 10 lesson003.scala for {i <- 1 to 3 j <- 2 to 4} println(i * j)実行結果 T:\>scala lesson003.scala 2 3 4 4 6 8 6 9 12