printf That's not actually where someone implemented print F and related functions, rather, in dot H files, by convention, are prototypes.

那实际不是有某人在哪里执行,相关函数，而是在，h文件中，按照惯例，它们是函数原型。

哈佛公开课 - 计算机科学课程节选

Now I'm typing dot slash as a convention.

现在我输入。

哈佛公开课 - 计算机科学课程节选

The convention is not to call it something dot txt but something dot C, just a convention.

但这个文件并不是以XX，txt命名,而是以XX，c命名，这只是一种约定而已。

哈佛公开课 - 计算机科学课程节选

Dot Gibson, general secretary of the National Pensioners Convention, says Saga needs to make significant changes to its pricing for customers who reinsure year after year.

BBC: Saga home insurance premiums row