一个切片的长度永远不能超出它的容量。

A slice's length can never exceed its capacity.

youdao

切片的长度可以更改，只要不超出切片的容量。

The length of a slice can be changed so long as it does not exceed the slice's capacity.

youdao

与字符串相关的一些典型的检查，会验证空字符串的长度是否为 0，访问范围超出索引是否导致错误消息或异常，等等。

Some of the typical string-related checks would validate whether an empty string has 0 length, accessing out-of-index results in an error message or exception, and so on.

youdao

Well, again, just as I said verbally a moment ago, if you're going here, you're literally touching, trying to read or change memory that's beyond the boundaries of a chunk of memory that you're supposed to be touching based on its length.

嗯，再次强调，就像我刚才说的，如果你从这里出发，你将依次接触到，试着读取或者改变内存,如果超出了你可以使用的,内存块长度的界限。

哈佛公开课 - 计算机科学课程节选