this.lookAt(HTML)_html/css_WEB-ITnose
HTML初探
HTML是一种标记语言,是采用标签的形式对纯文本进行标记。然后由解释器进行解释,进而使文本显示出不同的格式。
HTML标签
HTML标签主要有三种形式:
每个标签必须要有结束标志。HTML中标签的种类以及效果如表一所示。
标签 | 效果 |
---|---|
test | 末尾有空行的段落 |
head | 一号标题 |
head | 二号标题 |
一条水平线 | |
text | 黑体 |
text | 斜体 |
text Copy after login | 完全按照代码格式的文本 |
text | 计算机代码文本(没看出有什么区别) |
注释,被忽略 | |
…… | …… |
JavaScript脚本语言是一种面向浏览器的网页脚本编程语言。脚本语言有以下几个特性:
在客户端执行。完全在用户的计算机上运行,无须经过服务器。
面向对象。具有内置对象,也可以直接操作浏览器对象。
动态变化。可以对用户的输入作出反应,也可以直接对用户输出。
简单易用。JavaScript脚本语言虽然简单,但初学者也能快速掌握。
只能与HTML语言一起使用。要通过浏览器解释执行。
插入javascript
JavaScript采用如下格式插入在html语言中:
<script language="JavaScript">//js语句alert("你好");</script>
或者直接在地址栏输入:
javascript:alert(200*75)
或者将代码单独保存在 *.js 文件中,在需要时再调用。
<script language="javascript" src="test.js"></script>
javascrip语法
(暂时认定和java一样→_→)

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The future of HTML is full of infinite possibilities. 1) New features and standards will include more semantic tags and the popularity of WebComponents. 2) The web design trend will continue to develop towards responsive and accessible design. 3) Performance optimization will improve the user experience through responsive image loading and lazy loading technologies.

The roles of HTML, CSS and JavaScript in web development are: HTML is responsible for content structure, CSS is responsible for style, and JavaScript is responsible for dynamic behavior. 1. HTML defines the web page structure and content through tags to ensure semantics. 2. CSS controls the web page style through selectors and attributes to make it beautiful and easy to read. 3. JavaScript controls web page behavior through scripts to achieve dynamic and interactive functions.

HTML is the cornerstone of building web page structure. 1. HTML defines the content structure and semantics, and uses, etc. tags. 2. Provide semantic markers, such as, etc., to improve SEO effect. 3. To realize user interaction through tags, pay attention to form verification. 4. Use advanced elements such as, combined with JavaScript to achieve dynamic effects. 5. Common errors include unclosed labels and unquoted attribute values, and verification tools are required. 6. Optimization strategies include reducing HTTP requests, compressing HTML, using semantic tags, etc.

HTML, CSS and JavaScript are the core technologies for building modern web pages: 1. HTML defines the web page structure, 2. CSS is responsible for the appearance of the web page, 3. JavaScript provides web page dynamics and interactivity, and they work together to create a website with a good user experience.

HTMLisnotaprogramminglanguage;itisamarkuplanguage.1)HTMLstructuresandformatswebcontentusingtags.2)ItworkswithCSSforstylingandJavaScriptforinteractivity,enhancingwebdevelopment.

HTML is a language used to build web pages, defining web page structure and content through tags and attributes. 1) HTML organizes document structure through tags, such as,. 2) The browser parses HTML to build the DOM and renders the web page. 3) New features of HTML5, such as, enhance multimedia functions. 4) Common errors include unclosed labels and unquoted attribute values. 5) Optimization suggestions include using semantic tags and reducing file size.
