Pathfinder is an example of what programmers call functions, subroutines, or procedures.

Pathfinder 程序员称为函数、子例程或过程的示例。

To compartmentalize and hide complexity, programming languages can package pieces of code into named functions, also called methods or subroutines in different programming languages.

为了划分和隐藏复杂性， 编程语言可以将代码片打包成命名函数，在不同的编程语言中也称为方法或子例程。

So basically, what you've done, is maintained your framework - " I'm going to work through this class" , but you've decided to modify some of the subroutines, that make up that frame.

所以基， 所做的维护的框架——“我将完成这个类”，但已经决定修改一些子程序， 这些子程序构成了那个框架。