local numbers = _objectWrappers:wrap(_arrays:arrayOf(_plugins:loadClass("java.lang.Integer"), 1, 2, 3, 4, 5))
-- 计算所有元素的索引加权和
local weightedSum = numbers:foldIndexed(0, function(index, acc, element)
    return acc + element * (index + 1)
end)
-- 输出：索引加权和: 55
_console:log("索引加权和: ", weightedSum)