儿童和后代 [英] Children and descendents

问题描述

使用Tree Walker，我想导航到网页中的每个元素.能否获得帮助，如何获取网页的所有子项和兄弟姐妹?如何循环功能.

Using Tree Walker I want to navigate to every element in a Webpage.Can I get help , how to get all the children and siblings of a webpage.How to loop a function.

推荐答案

你好，

从概念上讲， 请参阅这篇文章.本文不是关于遍历 DOM ，但涉及要使用的概念.通常，当开发人员想要遍历DOM时，它是在Web浏览器开发人员工具中完成的，而不是根据请求编写代码.如果不使用递归，根据网页的不同，情况可能会变得非常复杂.  

Conceptually speaking, see this article. The article is not about traversing the DOM but about a concept to use.  Generally when a developer wants to traverse the DOM it's done in a web browser developer tool rather than write code as request. Depending on the web page this can get very complicated without the use of recursion.  

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