Otherwise, what was the point of getting a string from the user if I'm not handed the result to actually do something interesting with.

否则的话，它不把值带给我们,我们就做不了想做的事情,那我们还要它有什么用呢？

哈佛公开课 - 计算机科学课程节选

> You said you'd make a space between if and the parenthesis; does that actually matter?

>，你说你在if和括号之间用了个空格;,那有什么影响吗？

哈佛公开课 - 计算机科学课程节选