还可以使用string函数来报告字符串属性，如子串的长度或位置，例如

You can also use string functions to report string attributes such as length or position of a sub-string, for example

youdao

还可以使用string函数来报告字符串属性，如子串的长度或位置，例如

You can also use string functions to report string attributes such as length or position of a sub-string, for example

youdao