Kotlin学习笔记（九）for循环

fun main(args: Array<String>) {
    for (arg in args) { //普通for语句
        println(arg)
    }

    for ((index, value) in args.withIndex()) { //带下标和值的for语句1
        println("$index -> $value")
    }

    for (indexValue in args.withIndex()) { //带下标和值的for语句2
        println("${indexValue.index} -> ${indexValue.value}")
    }
}

运行结果