If I had had a clean interface, that I had a specific method to get those values out, I wouldn't have to change anything.

如果之前我创建了，一个清楚的借口,也就是我有特定的，取得这些值的方法的话。

麻省理工公开课 - 计算机科学及编程导论课程节选

same point Cartesian to have 1 representation for a point that supports different ways of getting information out, but has gathered within it, a method or a function for dealing with things like how do I know if it's the same point or not.

还有,这是一个比较极坐标的点,是否相同的不同的方法，但是这开始成了一个麻烦事儿了，我真正想要做的事情是,创建一个能支持不同的方式,输出已经收集的信息的点的表示。

麻省理工公开课 - 计算机科学及编程导论课程节选