It's going to make a lot more sense later on when we introduce mutation into our language, but I want you to start thinking of it that way.

这个功能在我们以后介绍突变的时候,会有更大的作用，但是我想要大家，现在就开始思考它。

麻省理工公开课 - 计算机科学及编程导论课程节选