Even the functions and operators that you can use in XPath are all about selection.

即使在XPath中使用的函数和运算符也都与选择有关。

youdao

While XPath doesn't support functions, XQuery provides a substantial collection of built-in functions and operators and also allows users to define functions of their own.

XPath不支持函数，但XQuery提供了一批重要的内置函数和运算符，而且还允许用户定义自己的函数。

youdao

Notice that the codepoints-to-string example also uses two of the new XPath value comparison operators: lt (less than) and gt (greater than).

请注意，codepoints-to-string 的例子还用到了两个新的 XPath 值比较 运算符：lt（小于）和 gt（大于）。

youdao