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2.1 什么是万维网?
- 万维网是一个信息资源的网络。此网络资源的高度可用性基于以下三个原则:
- 一个统一的命名方案来定位网上的资源(例如:URI)
- 访问网络上资源的协议(例如:HTTP)
- 可以简单的浏览资源的超文本(例如:HTML)