REDUCE函数

通过对每个值应用LAMBDA,将一个数组减少为一个累积值,并返回累积器中的总数值。

语法 REDUCE函数的语法有以下参数。 initial_value 设置累积器的起始值。 array 一个要被减少的数组。 lambda 调用一个LAMBDA来减少数组。该LAMBDA需要两个参数。 accumulator 数值加起来,作为最终结果返回。 value 应用于数组中每个元素的计算。 备注 在使用这个函数之前,你需要打开allowDynamicArray选项 示例 将平方值求和 只计算偶数值
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