Because the IFs are saying, if it's true do this, otherwise skip on it.

因为IF是这样的，如果结果是真的，进行如下操作，如果不是那么跳过它吧。

麻省理工公开课 - 计算机科学及编程导论课程节选

That's what it says, "REM," On the printout and about two years after I was doing this a student came up and said, "Professor Wright, it's really not "Rem."" Oh, it's not?" Okay.

封面上的确,就是印着,REM,两年之后,我开始放的时候,一个学生上来跟我说,莱特教授,这真的不是REM乐队,哦,不是吗,好吧

耶鲁公开课 - 聆听音乐课程节选