The idea of a function is, that I'm going to capture a common pattern of computation.

函数的目的,就是寻找计算的共同模式。

麻省理工公开课 - 计算机科学及编程导论课程节选

And I haven't said yet, how do I get that collection, but you could certainly conceptualize that, if I had that collection, that would be nice thing to do. That is a more common pattern.

也可以这么来操作,这是个更常用的模式,这基本上也就意味着，对于某些数据的集合,我想要一个循环机制。

麻省理工公开课 - 计算机科学及编程导论课程节选