Well, we certainly didn't know on day one how many times each of you was going to want to call get string, how many words a user might type when you call get string.

好的，当然我们不知道第一天你们,想要调用GetSting多少次，当你调用GetSting时，用户会输入多少单词。

哈佛公开课 - 计算机科学课程节选