First, determine the element tag and then get the text node value for the element tag.

您首先要确定元素标签，然后获得元素标签的文本节点值。

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Here you have a struct that includes the first element as a data item and the second element as a pointer to the next node.

这样您就拥有了一个struct，其中第一个元素为数据条目，第二个元素为指向下一个节点的指针。

youdao

It can also save time, if it turns out (as it often does) that the only thing done with the node-set is to test whether it is empty, or to get the value of its first element.

它还可以节省时间，如果对于节点集的唯一操作就是测试它是否是空的(通常是这种情况)，或者对它的第一个元素进行赋值。

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