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web全栈

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web全栈课程详情

你对HTML5了解多少

Web前端的核心技术点html5已成为互联网的主宰

什么是HTML5

万维网的核心语言、超文本标记语言(HTML)的第五次重大修改。HTML5 已经于2014年10月正式定稿。然而,大部分现代浏览器已经具备了某些HTML5支持。HTML5是web时代前沿的技术,它特有canvas标签和多种选择的游戏开发引擎,让游戏开发更便捷。如果说苹果重新发明了手机,那么HTML5则重新定义了网络。它是链接手机、平板电脑、PC以及其他移动终端的桥梁,可以更丰富地展现页面,让视频、音频、游戏以及其他元素构成一场华丽的代码盛宴。

HTML5发展前景

HTML5是WEB的未来,不仅在电脑端,而且在移动端也一定会得到广泛的应用。据统计2013年全球将有10亿手机浏览器支持HTML5,同时HTML Web开发者数量将达到200万。毫无疑问,HTML5将成为未来5-10年内,移动互联网领域的主宰者。据IDC的调查报告统计,截至2012年5月,有79%的移动开发商已经决定要在其应有程序中整合HTML5技术。 WEB技术发展越来越迅速,HTML5的到来更是把WEB技术推向了巅峰,目前HTML5技术已经日趋成熟,HTML5的未来十分光明,值得我们去学习。

HTML5可以做什么

除了实现之前HTML可以实现的功能外,HTML5做以下特别的事情:

1、本地存储 基于HTML5开发的网页APP拥有更短的启动时间,更快的联网速度,这些全得益于HTML5 APP Cache,以及本地存储功能。

2、实现多媒体更加简单 利用HTML5的video标签和audio标签非常方便的在网页上添加视频和音频,不需要很复杂的代码,就能打造一款功能齐全的HTML5播放器。

3、三维图形和动画 HTML5的3D引擎却可以更方便的实现3D效果,而且更加逼真。

4、CSS3的运用 CSS3提供更多的CSS属性,可以做更丰富的渲染效果。

HTML5的优势

1. 一次编写,随处部署--HTML5可以在多种设备上运行,这是其他方式都无法做到的。

2. 在互联网中分享--HTML5应用都有一个URL,因此它可以在互联网中被随意分享,并且在搜索时即可被找到。

3. 多厂商标准,建立在协议之上--HTML5是众多公司努力的结果,没有一家厂商可以左右它的方向。

4. 适用于多种环境--HTML5应用可以使用交互式设计来提供佳体验,而不需要更改代码。你可以从桌面到手机到平板电脑无缝进行切换,而无需重复安装不同的应用。

Web前端开发需要学什么

现场授课和网络教学

十年总监大牛 手把手教你做前端

北大青鸟五道口校区

北大青鸟五道口校区
认证 7 年

成立: 2006年

认证 地址认证 教学保障 在线预约 到店体验 售后支持
基本 文件 流程 错误 SQL 调试
  1. 请求信息 : 2026-04-17 13:15:52 HTTP/1.1 GET : http://www.edubq.com/s/15328/c/140709.html
  2. 运行时间 : 0.043606s [ 吞吐率:22.93req/s ] 内存消耗:352.38kb 文件加载:136
  3. 缓存信息 : 0 reads,0 writes
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  1. CONNECT:[ UseTime:0.000329s ] mysql:host=127.0.0.1;port=3306;dbname=baijiao_branch_collect;charset=utf8
  2. SHOW FULL COLUMNS FROM `fqi_school` [ RunTime:0.000887s ]
  3. SELECT * FROM `fqi_school` WHERE `school_id` = '15328' AND `site_id` = 5 AND `school_status` = 1 LIMIT 1 [ RunTime:0.000241s ]
  4. SHOW FULL COLUMNS FROM `fqi_school_class` [ RunTime:0.000565s ]
  5. SELECT * FROM `fqi_school_class` WHERE `school_id` = 15328 [ RunTime:0.000323s ]
  6. SHOW FULL COLUMNS FROM `fqi_school_campus` [ RunTime:0.000707s ]
  7. SELECT * FROM `fqi_school_campus` WHERE `school_id` = 15328 [ RunTime:0.000197s ]
  8. SHOW FULL COLUMNS FROM `fqi_school_course` [ RunTime:0.000660s ]
  9. SELECT `a`.*,`content` FROM `fqi_school_course` `a` LEFT JOIN `fqi_school_course_content` `b` ON `b`.`content_id`=`a`.`content_id` WHERE `school_id` = 15328 AND `a`.`content_id` = '140709' AND `course_status` = 1 AND `school_status` = 1 LIMIT 1 [ RunTime:0.000319s ]
  10. (select content_id,course_name from fqi_school_course where school_id = '15328' and content_id < '140709' and site_id = '5' order by content_id desc limit 1) union all(select content_id,course_name from fqi_school_course where school_id = '15328' and content_id > '140709' and site_id <= '5' order by content_id asc limit 1) [ RunTime:0.000806s ]
  11. SELECT * FROM `fqi_school_course` WHERE `school_id` = 15328 AND `site_id` = 5 AND `course_status` = 1 AND `school_status` = 1 AND `school_class_id` = 29019 ORDER BY `course_id` DESC LIMIT 4 [ RunTime:0.000392s ]
  12. SELECT * FROM `fqi_school_course` WHERE `school_id` = 15328 AND `site_id` = 5 AND `course_status` = 1 AND `school_status` = 1 ORDER BY `course_id` DESC LIMIT 10 [ RunTime:0.000263s ]
  13. SELECT COUNT(*) AS think_count FROM `fqi_school_course` WHERE `school_id` = 15328 AND `course_status` = 1 [ RunTime:0.000181s ]
  14. SHOW FULL COLUMNS FROM `fqi_school_teacher` [ RunTime:0.000671s ]
  15. SELECT COUNT(*) AS think_count FROM `fqi_school_teacher` WHERE `school_id` = '15328' [ RunTime:0.000214s ]
  16. SHOW FULL COLUMNS FROM `fqi_school_comments` [ RunTime:0.000681s ]
  17. SELECT COUNT(*) AS think_count FROM `fqi_school_comments` WHERE `school_id` = '15328' [ RunTime:0.000201s ]
  18. SELECT `content_id`,`course_name`,`a`.`school_id`,`b`.`school_name` FROM `fqi_school_course` `a` LEFT JOIN `fqi_school` `b` ON `b`.`school_id`=`a`.`school_id` WHERE `a`.`site_id` = '5' AND `b`.`school_status` = '1' AND `course_status` = 1 AND `course_id` < '140709' ORDER BY `content_id` DESC LIMIT 20 [ RunTime:0.032621s ]
0.043878s