向非程序员解释函数式编程（其实就是 Excel）
本文用 Excel 表格的工作方式作为通俗易懂的类比，向非程序员解释函数式编程的核心概念。作者认为，函数式编程的基本原则——如不可变数据、纯函数和声明式计算——与 Excel 中单元格通过公式引用其他单元格进行计算的方式高度相似。通过这个熟悉的场景，读者可以理解函数式编程为何能减少副作用、提升可预测性，而无需接触任何代码。
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