内函数的声明跟在var语句的后面。

Inner functions should follow the var statement.

youdao

头文件中包含函数的声明，如列表3中所示，而实体文件中包含函数的定义，如列表4中所示。

The header file contains the declaration of the function as shown in Listing 3, and the body file contains the definition of the function as shown in Listing 4.

youdao

您可以使用function关键字开始函数的声明，使用var关键字来声明局部变量(这与全局变量不同)，但是不用包括正在声明的变量的类型。

You use the function keyword to denote the start of a function and the var keyword to declare local (as opposed to global) variables, but you do not include the type of the variable being declared.

youdao

If you scroll back up on the printout or screen here, you'll see that you can actually not only declare function's prototypes, their general structure.

如果我回滚到打印输出或者这个屏幕，你们将看到你们不仅可以声明函数的原型,它们的一般结构。

哈佛公开课 - 计算机科学课程节选

So in return to, we have a slight variance here, -- where I'm defining apparently -- declaring a function called cube.

作为应答，这里我们有一点变化，这里我显然定义了-,声明了一个叫做cube的函数。

哈佛公开课 - 计算机科学课程节选

Now because among its contents is the prototype for print F, that is why, very simply, I can call print F without having to declare its prototype myself.

现在因为在它的内容中是printf的原型，这就是为什么我可以不声明printf函数的原型,而可以调用它。

哈佛公开课 - 计算机科学课程节选