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This article will explain in detail how to analyze xml. The content of the article is of high quality, so the editor will share it for you as a reference. I hope you will have a certain understanding of the relevant knowledge after reading this article.

Xml is designed to transmit and store data and is a tree structure.

I. grammatical rules

All XML elements must be closed tags, open and closed tags must be written in the same case, correctly nested, must have a root element, XML attribute values must be in quotation marks, and so on.

II. Introduction to DTD

DTD can verify that XML is a "legitimate" XML

1. Internal reference

2. External reference

Normal xml file

This is the end of the analysis on how to carry out xml. I hope the above content can be helpful to you and learn more knowledge. If you think the article is good, you can share it for more people to see.

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