node.js - 怎么用nodejs分析出爬的不同网页那部分是文章标题和内容主体，有相关资料吗

Question

怎么用nodejs分析出爬的不同网页那部分是文章标题和内容而不是页面的其他元素，有相关资料吗

Answer 1

If it is a specific website, you can make some matches based on its pages.
It would be difficult to be compatible with all websites. Identification based solely on tag names is definitely not accurate. There should be algorithms such as neural networks and machine learning.

Answer 2

It is more convenient to use the cheerio module.
Example: http://www.focalhot.com/blog/62.html

Answer 3

Content themes can try using line block density
You can only find tags like h1-h3 for the title