Shulou(Shulou.com)06/03 Report--

This article mainly shows you the "sample analysis of XML tree structure", the content is easy to understand, clear, hope to help you solve your doubts, the following let the editor lead you to study and learn "sample analysis of XML tree structure" this article.

XML documents use simple, self-descriptive syntax:

ToveJaniReminderDon't forget me this weekend!

The first line is the XML declaration. It defines the version of XML (1. 0) and the encoding used (ISO-8859-1 = Latin-1/ Western European character set).

The next line describes the root element of the document (like saying, "this document is a note"):

The next four lines describe the four child elements of the root (to, from, heading, and body):

ToveJaniReminderDon't forget me this weekend!

The last line defines the end of the root element:

You can assume that, from this example, the XML document contains a note written by Jani to Tove.

XML has excellent self-description. Do you agree?

XML documents form a tree structure

The XML document must contain the root element. This element is the parent of all other elements.

The elements in the XML document form a document tree. The tree starts at the root and extends to the bottom of the tree.

All elements can have child elements:

.

Terms such as parent, child, and sibling are used to describe the relationship between elements. The parent element has child elements. Child elements at the same level become siblings (brothers or sisters).

All elements can have textual content and attributes (similar to HTML).

Example:

The image above shows a book in the following XML:

Everyday ItalianGiada De Laurentiis200530.00Harry PotterJ K. Rowling200529.99Learning XMLErik T. Ray200339.95 above is all the content of this article "sample Analysis of XML Tree structure". Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.