It takes two input variables and returns the difference of those two Numbers.

它接收两个输入变量，并返回这两个数值的差。

youdao

Of course, it can get more complex than that, including dozens of input variables.

当然，也可以远比此复杂，可以包括很多输入变量。

youdao

You need to identify all input variables in all of the steps in the given scenario.

在所给场景的所有步骤中你需要确定全部输入的变量。

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We've been using strings thus far to get input from user and store it in variables.

迄今为止，我们用字符串来接受用户的输入,然后存储在变量里。

哈佛公开课 - 计算机科学课程节选