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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