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
