\n 是换行,英文是 New line,表示使光标到行首\r 是回车,英文是 Carriage return,表示使光标下移一格\r\n 表示回车换行
我们在平时使用电脑时,已经习惯了回车和换行一次搞定,敲一个回车键,即是回车,又是换行
1、\n 软回车:
在Windows 中表示换行且回到下一行的最开始位置。相当于Mac OS 里的 \r 的效果在Linux、unix 中只表示换行,但不会回到下一行的开始位置
2、\r 软空格:
在Linux、unix 中表示返回到当行的最开始位置在Mac OS 中表示换行且返回到下一行的最开始位置,相当于Windows 里的 \n 的效果
3、\t 跳格(移至下一列)
它们在双引号或定界符表示的字符串中有效,在单引号表示的字符串中无效。
\r\n 一般一起用,用来表示键盘上的回车键,也可只用 \n\t 表示键盘上的“TAB”键
就像你使用 enter和shift+enter的区别
4、文件中的换行符号:
Linux,unix: \r\nWindows : \nMac OS : \r
5、常用转义符号的意义:
\n LF或ASCII中的0x0A(10)\r CR或ASCII中的0x0D(13)\t 水平制表符-HT或ASCII中的0x09(9)\\ 反斜杠\$ 美圆符\" 双引号\' 单引号
6、\r\n 与
的区别
\r\n是输出的HTML代码换行,客户看到的效果没有换行如果是输出给浏览器,就用 <br />
\r\n 好比你在 DreamWeaver 里做一个网页,在源代码里按一下回车,是给源代码回车换行。是输出一个(HTML标记性语言),在HTML中解释为输入的字换行\r\n 的作用是给源代码回车换行,输入后,查看 html 源代码,就看会到有换行,而 HTML 解释器(浏览器)认为它是没用的东西,用不用都一样显示
原文地址: http://m.studyofnet.com/news/285.html

The roles of HTML, CSS and JavaScript in web development are: 1. HTML defines the web page structure, 2. CSS controls the web page style, and 3. JavaScript adds dynamic behavior. Together, they build the framework, aesthetics and interactivity of modern websites.

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.

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

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 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.

WebdevelopmentreliesonHTML,CSS,andJavaScript:1)HTMLstructurescontent,2)CSSstylesit,and3)JavaScriptaddsinteractivity,formingthebasisofmodernwebexperiences.

The role of HTML is to define the structure and content of a web page through tags and attributes. 1. HTML organizes content through tags such as , making it easy to read and understand. 2. Use semantic tags such as, etc. to enhance accessibility and SEO. 3. Optimizing HTML code can improve web page loading speed and user experience.


Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

MinGW - Minimalist GNU for Windows
This project is in the process of being migrated to osdn.net/projects/mingw, you can continue to follow us there. MinGW: A native Windows port of the GNU Compiler Collection (GCC), freely distributable import libraries and header files for building native Windows applications; includes extensions to the MSVC runtime to support C99 functionality. All MinGW software can run on 64-bit Windows platforms.

Notepad++7.3.1
Easy-to-use and free code editor

WebStorm Mac version
Useful JavaScript development tools

Dreamweaver Mac version
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)