And we won't wait here one hundred seconds for it to finish, but we're using the loop, we're updating a variable, and we're formatting it in a nice way.

我们将不会再这里等待100秒来等它完成,但是我们使用循环，我们更新一个变量，我们把它排成一个漂亮的格式。

哈佛公开课 - 计算机科学课程节选

But notice unlike a for loop, if you want to declare a variable or increment or decrement to variable, you've got to do that yourself.

但请注意不像for循环，如果你想声明一个变量,或者变大或变小一个变量，你需要自己完成。

哈佛公开课 - 计算机科学课程节选