子问题是这样：“搜索字符串是否与 这个节点 中的字符串相同？”

The sub-problem is this: "Is the search string the same as the one in this node?"

youdao

假设使用 DTD 并且声明了某个元素，实例中该元素的一个子节点仅由与 PCDATA 声明不匹配的空白组成。

Suppose you use a DTD, and you declare a particular element, and the instance includes a child node of that element comprising only whitespace that does not match a PCDATA declaration.

youdao

在这种情况下，将输入节点与一个名为id的节点相比较，id节点的子文本节点由传递给函数的Name字符串构成。

In this case, you compare the input node against a node named id that has a child text node made of the name string passed in to the function.

youdao