我们鼓励在办公室启动一个再循环程序，如果还没有的话。

Encourage your office to start a recycling program if it doesn't have one.

youdao

At the end of the day, you can implement the exact same program using a while loop that you can using a for loop, it's just your code is going to look slightly different.

最终，你可以执行这个程序,再使用for循环的地方使用while循环，这只是使你的代码看起来稍微有点不同。

哈佛公开课 - 计算机科学课程节选