Web technology reference for developers
Structure of content on the web
Code used to describe document style
General-purpose scripting language
Protocol for transmitting web resources
Interfaces for building web applications
Developing extensions for web browsers
Learn web development
Learn to structure web content with HTML
Learn to style content using CSS
Learn to run scripts in the browser
Learn to make the web accessible to all
A customized MDN experience
Learn how to use MDN Plus
Frequently asked questions about MDN Plus
此页面由社区从英文翻译而来。了解更多并加入 MDN Web Docs 社区。
PDF（可移植文档格式）是一种能够用来在任何特定软、硬件平台或操作系统上分享文档的文件格式。PDF 提供打印文档的数字图像，并能在打印时保持相同的外观。