HTML5的新特性
简洁的DOCTYPE:
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HTML5 只有一个简单的文档类型:。它不使用版本,因此该文档类型适用所有版本的HTML。
简单易记的语言标签:
你并不需要在 中使用xmlns 或xml:lang标记。 将对HTML5 有效。
简单易记的编码类型:
你现在可以在meta 标签中使用”charset”:
不需要闭合标签:
在HTML5 中,空标签(如:br、img 和input )并不需要闭合标签。
废弃的标签:
下面这些标签并不被HTML5 支持: 、、 、、、、、 、、、、、、 和。
更加语义化的新增标签:
HTML5 新增的一些新标签除了不仅仅是更具语义的
标签的替代品,并不提供额外的功能。这些都是新增的标签:
、、、、 ,、、、、 和。表单增强:
HTML5 为表单提供了几个新的属性、input 类型和标签。到目前为止,只有Opera 对HTML5 有比较好的支持。你因此应该下载Opera 来查看大部分新特性如何工作。
新的INPUT类型:color, email, date, month, week, time, datetime, datetime-local, number,range,search, tel, 和url新属性:required, autofocus, pattern, list, autocomplete 和placeholder新元素:, , , 和
视频和音频:
音频: ogg (ogg, oga), mp3, wav, AAC视频: ogg (ogv), H.264 (mp4)
基于JavaScript 的2D 绘画: HTML5 中最让人兴奋的特性是 还有很多内容,比如数据存储,拖放等等。。。一点一点学习ing;
网页名称:HTML5的新特性
本文地址:http://www.tsicrk.com/article/jhdgcs.html
基本
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SQL
调试
请求信息 : 2026-05-25 00:07:48 HTTP/1.1 GET : /article/jhdgcs.html 运行时间 : 1.7527s ( Load:0.0084s Init:1.1328s Exec:0.6024s Template:0.0091s ) 吞吐率 : 0.57req/s 内存开销 : 2,221.53 kb 查询信息 : 12 queries 5 writes 文件加载 : 36 缓存信息 : 0 gets 0 writes 配置加载 : 130 会话信息 : SESSION_ID=7n2fvppe6m31vk2a3o1bq4mr61
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[ app_init ] --START-- Run Behavior\BuildLiteBehavior [ RunTime:0.000009s ] [ app_init ] --END-- [ RunTime:0.000044s ] [ app_begin ] --START-- Run Behavior\ReadHtmlCacheBehavior [ RunTime:0.000363s ] [ app_begin ] --END-- [ RunTime:0.000389s ] [ view_parse ] --START-- [ template_filter ] --START-- Run Behavior\ContentReplaceBehavior [ RunTime:0.000049s ] [ template_filter ] --END-- [ RunTime:0.000073s ] Run Behavior\ParseTemplateBehavior [ RunTime:0.006126s ] [ view_parse ] --END-- [ RunTime:0.006154s ] [ view_filter ] --START-- Run Behavior\WriteHtmlCacheBehavior [ RunTime:0.000157s ] [ view_filter ] --END-- [ RunTime:0.000171s ] [ app_end ] --START--
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[ SQL语句 ] : SELECT `id`,`pid`,`navname` FROM `cx_nav` WHERE ( id= ) LIMIT 1 1064:You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ') LIMIT 1' at line 1
[ SQL语句 ] : SELECT `id`,`navname` FROM `cx_nav` WHERE ( id= ) LIMIT 1 1064:You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ')' at line 1
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