And then what I get to do inside the curly braces is literally line by line enumerate the cases that I want to apply to the following code.

然后我们在花括号中要做的是,逐行地列举接下来我想要,应用的代码。

哈佛公开课 - 计算机科学课程节选

So the open curly brace followed by the closed curly brace means everything inside of these curly braces should get executed, but only if that first condition is actually true.

所以左花括号后面跟着,右花括号，这意味着花括号里面所有的代码,都应该是要被执行的，但只有当第一个条件是正确的。

哈佛公开课 - 计算机科学课程节选

But for now, it's probably simpler just always use the curly braces just to get into the habit.

但是现在，简单起见，你可以,养成每次都使用花括号的习惯。

哈佛公开课 - 计算机科学课程节选