This is what's written in what we'll generally call pseudocode.

而是用伪码写的。

计算机科学课程节选 : 哈佛公开课

Pseudocode is kind of an English-like syntax that's just a useful way of expressing yourself fairly succinctly, fairly computer-like but without having to worry about stupid details like whether it's Java or C or whatever.

伪码是一种类似英语的语法,可以简洁地,表达自己的意思，它与电脑类似,但是你不用担心那些愚蠢的细节,比如Java，C语言或者其他什么语言。

计算机科学课程节选 : 哈佛公开课

In this case, it's a sequence of ASCII characters.

在这里，就是一系列ASCII码。

计算机科学课程节选 : 哈佛公开课