val arrays = intArrayOf(2, 4, 6, 8, 10)
//遍历数组值
for (array in arrays) {
println("for in: array = $array")
}
//遍历数组下标
for (index in arrays.indices) {
println("for indices: index = $index")
}
//遍历数组下标和值
for ((index, value) in arrays.withIndex()) {
println("for withIndex: index = $index value = $value")
}
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