首先，我先做一个检查，我们以前使用过字符串长度函数。

First, I'm going to do a sanity check strlen so we've used string length, strlen, before.

youdao

如果函数长度超过100行，就显示错误消息。

If the function length exceeds 100, an error message is displayed.

youdao

如果您使用CODEUNITS16来计算前两个字节的长度，则函数将给出一个警告。

If you find the length of the first two bytes in CODEUNITS16, the function results in a warning.

youdao

First, I'm going to do a sanity check strlen so we've used string length, strlen, before.

首先，我先做一个检查,我们以前使用过字符串长度函数。

哈佛公开课 - 计算机科学课程节选

I certainly don't want to assume they're always going to type a three-letter or a four-letter or a two-letter word I want some dynamism but that's fine because get string can get a string of any length, I can then use the string length function to just ask while the program is running how big is the string that I was handed?

当然我不能假设他总是,输入3个字符或4个字符,或2个字符的单词，我想要动态地分配,因为GetString可以获得任意长度的字符串，然后我可以使用strlen函数,来得到那个我传递的字符串,有多长？

哈佛公开课 - 计算机科学课程节选