在介绍HTML之前,我想先说说Web,就是我们经常所说的互联网,web的页面就是一个网页,或者说是一种文档,而这种文档是从何而来的那?紧接着,HTML就要出厂了。
一、Web与HTML
Web是互联网的总称,Wbe的本意是蜘蛛网或网的意思,在网页设计中我们称为网页的意思。现广泛译作网络、互联网等技术领域,其表现形式为:超文本(hypertext)超媒体(hypermedia)、超文本传输协议(HTTP)。
HTML(Hypertext Markup Language):超文本标记语言,是一种编写网页的语言。
网页的本质就是超级文本标记语言,通过结合使用其他的Web技术(如:脚本语言、公共网关接口、组件等),可以创造出功能强大的网页。因而,超级文本标记语言是万维网(Web)编程的基础,也就是说万维网是建立在超文本基础之上的。超级文本标记语言之所以称为超文本标记语言,是因为文本中包含了所谓“超级链接”点。
二、Web工作原理
1、输入网址:当你想进入万维网上一个网页代码,或者其他网络资源的时候,通常你要首先在你的浏览器上键入你想访问网页的统一资源定位符(UniformResource Locator),也就是我们现在通常所说的网址,或者通过超链接方式链接到那个网页或网络资源。
2、解析网址:之后的工作是URL的服务器名部分,被名为域名系统的分布于全球的因特网数据库将你输入的网址解析,并根据解析结果决定进入哪一个IP“网络协议”地址(IP address)。接下来的步骤是为所要访问的网页,向在那个IP地址工作的服务器发送一个HTTP请求。在通常情况下,HTML文本、图片和构成该网页的一切其他文件很快会被逐一请求并发送回用户。
3、浏览器呈现:网络浏览器接下来的工作是把HTML、CSS和其他接受到的文件所描述的内容,加上图像、链接和其他必须的资源,显示给用户。这些就构成了你所看到的网页。
三、HTML基础知识
1、导图总结
对HTML的学习,我先从宏观和微观上把控了一下,从宏观上来说,HTML的知识包括文档、标签、表、还有超链接。从微观上来说那,文字特效组成网页的一些基本元素就是一些空元素、内容元素、熟悉元素等这三种元素组合起来的一种文档。
标签有控制段落用的,也有控制文本用的,表分为表格,列表(想数字列表,图形列表),还有表单。表单的功能非常强大,他能控制网页上面控件的类型,这个类型用标签的type属性控制。
HTML的一些知识在牛腩新闻发布系统中用到了很多,到现在总算有了一个共鸣。
四、小结
如果将web比喻成一个很大的资料库的话,这个资料库中就有许多文件,而HTML就是编写这些文件的一种工具之一。HTML??超文本标记语言,它将书写Web世界的各种篇章。

HTMLtagsdefinethestructureofawebpage,whileattributesaddfunctionalityanddetails.1)Tagslike,,andoutlinethecontent'splacement.2)Attributessuchassrc,class,andstyleenhancetagsbyspecifyingimagesources,styling,andmore,improvingfunctionalityandappearance.

The future of HTML will develop in a more semantic, functional and modular direction. 1) Semanticization will make the tag describe the content more clearly, improving SEO and barrier-free access. 2) Functionalization will introduce new elements and attributes to meet user needs. 3) Modularity will support component development and improve code reusability.

HTMLattributesarecrucialinwebdevelopmentforcontrollingbehavior,appearance,andfunctionality.Theyenhanceinteractivity,accessibility,andSEO.Forexample,thesrcattributeintagsimpactsSEO,whileonclickintagsaddsinteractivity.Touseattributeseffectively:1)Usese

The alt attribute is an important part of the tag in HTML and is used to provide alternative text for images. 1. When the image cannot be loaded, the text in the alt attribute will be displayed to improve the user experience. 2. Screen readers use the alt attribute to help visually impaired users understand the content of the picture. 3. Search engines index text in the alt attribute to improve the SEO ranking of web pages.

The roles of HTML, CSS and JavaScript in web development are: 1. HTML is used to build web page structure; 2. CSS is used to beautify the appearance of web pages; 3. JavaScript is used to achieve dynamic interaction. Through tags, styles and scripts, these three together build the core functions of modern web pages.

Setting the lang attributes of a tag is a key step in optimizing web accessibility and SEO. 1) Set the lang attribute in the tag, such as. 2) In multilingual content, set lang attributes for different language parts, such as. 3) Use language codes that comply with ISO639-1 standards, such as "en", "fr", "zh", etc. Correctly setting the lang attribute can improve the accessibility of web pages and search engine rankings.

HTMLattributesareessentialforenhancingwebelements'functionalityandappearance.Theyaddinformationtodefinebehavior,appearance,andinteraction,makingwebsitesinteractive,responsive,andvisuallyappealing.Attributeslikesrc,href,class,type,anddisabledtransform

TocreatealistinHTML,useforunorderedlistsandfororderedlists:1)Forunorderedlists,wrapitemsinanduseforeachitem,renderingasabulletedlist.2)Fororderedlists,useandfornumberedlists,customizablewiththetypeattributefordifferentnumberingstyles.


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