object D01_遍历集合 {
def main(args: Array[String]): Unit = {
val list: List[Int] = (1 to 5).toList
// 获取迭代器
val iterator: Iterator[Int] = list.iterator
while (iterator.hasNext) {
println(iterator.next())
}
println("-" * 15)
// foreach
list.foreach((x: Int) => println(x))
println("-" * 15)
// 简化版
list.foreach(println(_))
}
}