HTTP协议的头文件内容,保护每部的实现步骤。-http header content

HTTP（HyperTextTransferProtocol）是超文本传输协议的缩写，它用于传送WWW方式的数据，该文章详细解说了http报头，让你一目了然。-HTTP (HyperTextTransferProtocol) is the acronym for Hypertext Transfer Protocol, which is used to transmit data through WWW, The article detailed explanation of http head

了解WWW的概念 了解统一资源定位符（URL）的结构 了解什么是HTML语言 理解HTTP协议的请求／响应机制，了解协商与缓存的作用 -Understanding the concept of understanding WWW uniform resource locator (URL) to understand what is the structure of HTML language understanding HTTP protocol request/respons

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