我惊喜地发现，我可以用很少的代码实现这种类型的动态映射。

I was pleasantly surprised how I could achieve this type of dynamic mapping with so little code.

youdao

请参阅下载小节，以查看代码实现。

Refer to download section for code implementation.

youdao

使用清单2的代码实现构造器例程。

Use the code in listing 2 for the constructor routine.

youdao

You will be able to infer from some of our code how in fact you can implement some more sophisticated programs.

你可以从一些代码中推断出,应该要怎样实现一些较复杂的程序。

哈佛公开课 - 计算机科学课程节选

You've got to do it above this chunk of code, you've got to do it inside this chunk of code.

你不得不在一大段代码之上来实现它，你不得不在一大段代码之内来实现它。

哈佛公开课 - 计算机科学课程节选

Another way of saying it is, anything that uses get float doesn't care what the details are inside or shouldn't, and if I change that definition, I don't have to change anything elsewhere in my code, whereas if I just have the raw code in there, I have to go off and do it.

换种说法就是，任何用到获取,输入这个功能的人不用担心具体的实现细节,如果我改变了这里的实现，我并不需要去改变我的代码,因为我的最底处的源码就在这里,我去改这里就可以了。

麻省理工公开课 - 计算机科学及编程导论课程节选