我现在能向这新的空类填充属性，诸如字符串和数字类型(代表了角色的成分)，以及这个类中常用的函数。

I can now fill the new empty class with attributes such as string and number types (representing the elements of the character), as well as functions common to this class.

youdao

这个函数是干什么的-，这个函数的最终角色是什么呢？

So what's for all this function — what's the role of this function in life?

youdao

模式匹配在函数式编程中扮演了中心角色，就好像多态在面向对象编程中扮演着中心角色一样。

Pattern matching plays a central role in functional programming just as polymorphism plays a central role in object-oriented programming.

youdao

- So what's for all this function -- what's the role of this function in life?

这个函数是干什么的-,这个函数的最终角色是什么呢？

哈佛公开课 - 计算机科学课程节选