


Xiaoqiang's HTML5 mobile development road (48) - (Small exercise) News subscription system [1]
1. Overall design
2. Database design
--新闻类别表 create table news_cate( news_cateid int primary key auto_increment, news_iconurl varchar(50), news_catname varchar(5), news_catedesc varchar(500)); --新闻数据表 create table news_data( news_id int primary key auto_increment, news_title varchar(50), news_content varchar(500), news_source varchar(50), news_cateid int, news_adddate datetime );
3. System cover development
<!DOCTYPE html> <html> <head> <title>练习</title> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0;" /> <link href="css/jquery.mobile-1.0.1.min.css" rel="stylesheet" type="text/css"/> <link href="css/rttopHtml5.css" rel="stylesheet" type="text/css"/> <script src="js/jquery-1.6.4.js" type="text/javascript" ></script> <script src="js/jquery.mobile-1.0.1.js" type="text/javascript" ></script> </head> <body> <p data-role="page" id="load_index" data-theme="c"> <p data-role="header" data-position="fixed"> <h4 id="阳光小强">阳光小强</h4> </p> <p class="border_p01"></p> <p class="load"> <p class="t">心是一个人的翅膀,心有多大世界就有多大,每个人都有一颗不平凡的心——相信自己</p> <p><img src="/static/imghwm/default1.png" data-src="images/rttop_loading.gif" class="lazy" alt="" /></p> <p class="l">正在加载数据...</p> </p> <p data-role="footer" data-position="fixed" > <h1 id="nbsp-blog-csdn-net-dawanganban-nbsp-studio">©2014 blog.csdn.net/dawanganban studio</h1> </p> </p> <script src="js/rttopHtml5.base.js" type="text/javascript"></script> <script src="js/rttopHtml5.news.js" type="text/javascript" ></script> </body> </html> </html>
Introduced two js file
rttopHtml5.base.js
var rttophtml5mobi = { author: 'tgrong', version: '1.0', website: 'http://localhost' } rttophtml5mobi.utils = { setParam: function(name, value) { localStorage.setItem(name, value) }, getParam: function(name) { return localStorage.getItem(name) } }
Basic Property settings
rttopHtml5.new.js
//封面页面创建事件 function changepage() { window.location.href = "index.htm"; } $('#load_index').live("pagecreate", function() { var id = setInterval("changepage()", 3000); })
Create a changepage() function, set the window object location.href path, and bind the pagecreate of this page event, execute the changepage() method every 3 seconds.
index.htm
<!DOCTYPE html> <html> <head> <title>练习</title> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0;" /> <link href="css/jquery.mobile-1.0.1.min.css" rel="stylesheet" type="text/css"/> <script src="js/jquery-1.6.4.js" type="text/javascript" ></script> <script src="js/jquery.mobile-1.0.1.js" type="text/javascript" ></script> </head> <body> <p data-role="page" id="index_index"> <p data-role="header" data-position="fixed" data-position="inline"> <h4 id="阳光新闻">阳光新闻</h4> </p> <p data-role="content"> </p> <p data-role="footer" data-position="fixed" > <h1></h1> </p> </p> </body> </html>
The above is Xiaoqiang’s The Road to HTML5 Mobile Development (48) - (Small Exercise) The content of the news subscription system [1]. For more related content, please pay attention to the PHP Chinese website (www.php.cn)!

A reasonable H5 code structure allows the page to stand out among a lot of content. 1) Use semantic labels such as, etc. to organize content to make the structure clear. 2) Control the rendering effect of pages on different devices through CSS layout such as Flexbox or Grid. 3) Implement responsive design to ensure that the page adapts to different screen sizes.

The main differences between HTML5 (H5) and older versions of HTML include: 1) H5 introduces semantic tags, 2) supports multimedia content, and 3) provides offline storage functions. H5 enhances the functionality and expressiveness of web pages through new tags and APIs, such as and tags, improving user experience and SEO effects, but need to pay attention to compatibility issues.

The difference between H5 and HTML5 is: 1) HTML5 is a web page standard that defines structure and content; 2) H5 is a mobile web application based on HTML5, suitable for rapid development and marketing.

The core features of HTML5 include semantic tags, multimedia support, form enhancement, offline storage and local storage. 1. Semantic tags such as, improve code readability and SEO effect. 2. Multimedia support simplifies the process of embedding media content through and tags. 3. Form Enhancement introduces new input types and verification properties, simplifying form development. 4. Offline storage and local storage improve web page performance and user experience through ApplicationCache and localStorage.

HTML5isamajorrevisionoftheHTMLstandardthatrevolutionizeswebdevelopmentbyintroducingnewsemanticelementsandcapabilities.1)ItenhancescodereadabilityandSEOwithelementslike,,,and.2)HTML5enablesricher,interactiveexperienceswithoutplugins,allowingdirectembe

Advanced tips for H5 include: 1. Use complex graphics to draw, 2. Use WebWorkers to improve performance, 3. Enhance user experience through WebStorage, 4. Implement responsive design, 5. Use WebRTC to achieve real-time communication, 6. Perform performance optimization and best practices. These tips help developers build more dynamic, interactive and efficient web applications.

H5 (HTML5) will improve web content and design through new elements and APIs. 1) H5 enhances semantic tagging and multimedia support. 2) It introduces Canvas and SVG, enriching web design. 3) H5 works by extending HTML functionality through new tags and APIs. 4) Basic usage includes creating graphics using it, and advanced usage involves WebStorageAPI. 5) Developers need to pay attention to browser compatibility and performance optimization.

H5 brings a number of new functions and capabilities, greatly improving the interactivity and development efficiency of web pages. 1. Semantic tags such as enhance SEO. 2. Multimedia support simplifies audio and video playback through and tags. 3. Canvas drawing provides dynamic graphics drawing tools. 4. Local storage simplifies data storage through localStorage and sessionStorage. 5. The geolocation API facilitates the development of location-based services.


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