stdio c So somewhere there's standard IO dot C, stdio h somewhere they're standard IO dot H, but, for me, right now, the only file I need to know about is the dot H, -- because what Sharp include really does -- it's what's called a preprocessor directive.

所以某个地方有一个，现在对于我来说它们是，我只要知道那个，h文件，因为Sharp包含的-,叫做预处理指令。

哈佛公开课 - 计算机科学课程节选

It makes sense to me logically that I want to see it first when I open the file; so I scroll on down but only later is increment declared.

这个逻辑上对我是有意义的，打开文件的时候,我想先看到它，所以我向下翻,之后才声明increment函数。

哈佛公开课 - 计算机科学课程节选