That code says the following: the IF says, I've got an expression, I'm going to evaluate it.

代码的含义是这样的：,我有一个表达式，我会去对这个表达式求值。

麻省理工公开课 - 计算机科学及编程导论课程节选

If you're not updating some variable by incrementing it or decrementing it -- if you're not changing anything, presumably the conditions are never going to evaluate to false or the opposite, so you're just going to have an infinite loop, which might be your goal, but odds are it's not.

如果你不通过增加或减少它来改变一些变量,-如果你不改变什么，大概那个条件永远不会变成错误的,或相反的，所以你将得到一个无限循环，那可能是你的目标，但可能也不是。

哈佛公开课 - 计算机科学课程节选

And in a moment I'll turn to evaluate whether it's a good argument or not, but I think it's a pretty interesting argument.

一会儿我会评估,这是不是个好的论证,但是我认为这是个很有趣的论证。

耶鲁公开课 - 死亡课程节选

So the take away is that if the user actually gives me two or three or four or whatever, this is this expression "is n less than 1" is going to evaluate to false if it's actually two or three or four or whatever.

所以先不管用户实际上给我,3，4还是其他数，这个表达式,“是否n小于1“将被评估为错误的,如果输入额是2，3，4或其它的数。

哈佛公开课 - 计算机科学课程节选