val numbers = arrayOf(1, 2, 3, 4, 5)
// 计算累积索引加权乘积,累积索引加权乘积: [1, 4, 36, 576, 14400]
numbers.runningReduceIndexed { index, acc, element -> acc * element * (index + 1) }.forEach {
    _console.log(it)
}