在清单9中，定义了一个没有参数的简单函数。

In Listing 9, I define a simple function that takes no parameters.

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表达式闭包是定义简单函数的一种便捷方式，用来模仿lambda符号。

Expression closures are a shorthand method of defining simple functions that mimics lambda notation.

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函数matrix 、array和dim是用于设置向量的维的简单函数。

The functions matrix , array , and dim are simply convenience functions for setting the dimensions of a vector.

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Now I got one just simple thing, and I simply have isolated that module inside of that function.What about abstraction?

而现在我只要做一件简单的事，那就是我只需把这个模块,加到函数中去？

麻省理工公开课 - 计算机科学及编程导论课程节选

Sometimes we might just directly tell you that's probably the easiest scenario, because when we think about work functions those are usually reported in energy.

有时候我们可能只是直接告诉你,那可能是最简单的情况，因为当我们考虑功函数时,它们经常用能量来记录。

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I'm actually just going to do something simple first, print the arguments to this function.

我实际上将要先做点简单的东西，打印函数的参数。

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