然后
结果
Array[Array[String]] = Array(Array(one, two, three, four, five, six, seven),
Array(one, two, three, four, five, six, seven),
Array(one, two, three, four, five, six, seven))
结果
Array[String] = Array(one, two, three, four, five, six, seven,
one, two, three, four, five, six, seven,
one, two, three, four, five, six, seven)