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前一段时间很火的 吴亦凡入伍的广告

你看静态新闻的时候,是在加载后面两个视频,加载完成之后,吴亦凡就蹦出来了

所以你们看到吴亦凡从画面里面出来的时候脑海里的台词是:

卧槽,这是怎么做到的!

而我的内心台词是:

卧槽,我知道是怎么做到的,你把流量还给我好么!

================================

更新一张之前和甲方之间的聊天记录,在整个minisite已经交付上线以后,甲方突然问了这么一句,大家感受一下。

这就是为什么我很反感别人跟我说H5,我特么知道你到底什么意思。。。

===================================================

先科普一下,HTML5并不是一项技术,而是一个标准

标准的意思就是:学生准则手册。你可以按照准则做,甚至可以超出准则更加严格的要求自己,也可以不按照准则来,但是会被老师训斥小伙伴讨厌,别人都不找你玩,就像IE6一样。

那HTML5这些标准浏览器厂商到底姿持不姿持呢?这要看他们各自的尿性了。像chrome这种不仅在很多标准上支持的非常好,还积极上进很多地方超出了标准,支持一些标准中还是草案的部分。

所以其实要么我们是作为理论派讨论HTML5标准,要么是作为实践派讨论HTML5标准在某浏览器的应用。但是实际上我们在说到H5的时候,并不是指标准,也不是指标准的应用,而是一个硬生生造出来的奇怪概念合集,所以我是旗帜鲜明的反对这个称呼的。

最近一年的时间,我主要靠这个东西养家(并没有家)糊口。所以我是懂得甲方打电话过来询问,“你是不是会做H5开发?”的时候,我知道他们要的是那种可以在朋友圈分享的,看起来很酷炫的小页面,他们实际要的东西拆开来看大概包括以下技术点;

1. 页面素材预加载技术,可以使用createJS之中的preloadJS。我没有看preloadJS的源码,不过预加载并不是HTML5标准中更新的方法。

2. 音乐加载播放技术,createJS中同样有soundJS可以实现,而且这部分说起来确实是HTML5标准支持的内容,在上个时代并没有audio这样的标签。

3.可以滑动的页面,大多数是用了swiper.这个Jquery插件,也有一些是手写的swipe,比较拙劣的手写版页面是不会跟手滑动的,其中touchstart等四个touch系列的事件是HTML5标准中的事件

4.可以涂抹擦除,多半是canvas叠加层,canvas是HTML5标准里面的标签,是代表了先进生产力的标签。

5.有动态的文字和图片,常见的是使用了css3或者直接使用动画。很多时候提到HTML5多半还会带上CSS3,而CSS的分级又是另外的一个问题了,在不同的项目标准上,CSS会独立定级,以后应该不会有CSS4这个东西,所以大家也不用担心在H5以后又冒出来了C4(不过真是想用C4炸死那些每天把H5挂在嘴上的人)

6.可以填表报名,这是最基本的表单,是有网页以来就有的东西。

7.可以支持分享自定义的文案和图片,这个是用到了微信的sdk,和HTML标准半毛钱关系都没有。

8.还有其他我想起来再补充的。

所以我们在谈论H5的时候,实际上是一个解决方案,一个看起来酷炫的移动端onepage网站的解决方案。而这个解决方案不仅包含了HTML5新增的audio标签,canvas,拖拽特性,本地存储,websocket通信,同时也包括了盒模型,包括绝对定位,包括一切前端的基本知识

有学弟来问我说,学长我想学H5,应该从哪里开始?

我说HTML5新增特性在W3C上都可以查得到的。

学弟说,不,我想学的是H5,想做H5的页面。

于是我猜测他所指的就是上面论述的这种酷炫小页面,我就说,那你要先学习HTML,包括HTML5的新标准和之前的全部标准,然后学CSS以及CSS3,了解它们在浏览器的实现情况,原生JS了解一点就可以,大多的操作可以用Jquery,了解常用的几个Jquery插件的用法,应该就差不多了。如果想要做更酷炫的的,学一下egret或者cocos2d更好。如果要优化加载速度,还要学一下grunt一类的自动化工具。微信的sdk有很多坑,至少node或者php一类的后端语言要会一点。

学弟说,那这不就是前端了么?我只是想学H5啊

所以你看,当我们对一个概念的内涵无法统一的时候,我们根本不知道彼此之间在谈论的是什么。

”H5“本应是一个技术合集,却被意会成了一项技术,变成可以在上而不是上描述的概念。

对于营销来说,我们只要讲我们可以做H5或者不能做,这种定性的描述就够了。但是对于技术上,这是定量的事情,只能在具体某个技术项上是否,无法对这个本不存在的概念说是否。

就比如我遇到过有甲方说,我们之前找了一个人做H5,做的还不错,但是这个case他又说做不了,我也搞不懂H5和H5之间也有那么大差别吗?我只能笑笑和他说,世界这么大,各种各样的H5都是有的

这就是为什么我反对H5,因为这个名词和它表示的内涵是严重不符的,这让我们难以沟通,让营销人和技术人之间产生误解,让浑水摸鱼的培训师们赚的盆满钵满,让技术新人不踏踏实实的学习技术。

每当有人问我,”你是不是做H5的?“

我的内心都很想咆哮一句,”你才是做H5的,你全家都是做H5的“

刚写的文章,或许能解答一二


什么是HTML?


通俗易懂版:

HTML就是你跟浏览器下达命令的语言。比如要把一篇文章显示在浏览器上,文章既有图片又有文字,你要告诉它哪些是文字,哪些是图片,并且分别都放在哪个地方,需要用什么样式(颜色、大小、对齐……),我们把浏览器显示的页面叫做网页。举个例子,要让下面这个简单的文字+图片显示在浏览器上:




翻译成浏览器懂的语言就是:

<title =”text-align:center”> 最简洁易懂的“H5”技术科普 <title>

<img src=”/img/h5教学” />


如果HTML是中国人发明的,那么表达方式就是:

<标题 格式=”文字对齐:居中”> 最简洁易懂的“H5”技术科普 <标题>

<图片 图片地址=”/img/h5教学” />


专业装逼版:


  • HTML(HyperText Mark-up Language)即超文本标记语言或超文本链接标示语言,是目前网络上应用最为广泛的语言,也是构成网页文档的主要语言。

  • HTML文本是由HTML命令组成的描述性文本,HTML命令可以说明文字、图形、动画、声音、表格、链接等。

  • HTML的结构包括头部(Head)、主体(Body)两大部分,其中头部描述浏览器所需的信息,而主体则包含所要说明的具体内容。



什么是HTML5?


HTML5是HTML的第五个版本,上一个版本是HTML4,于1997年发布。


HTML5本质上不是什么新的技术,但是由于其在功能特性上有了极大的丰富,在加上各大浏览器性能上的支持,HTML5相对以前的HTML4有着更广泛的应用。


HTML5主要的新特性:


语义特性(Class:Semantic)

HTML5赋予网页更好的意义和结构。简单来说就是程序猿更方便跟浏览器沟通。


本地存储特性(Class: OFFLINE & STORAGE)

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,因为可以将一些常用、不常更新的内容存储在本地。


设备兼容特性 (Class: DEVICE ACCESS)

HTML5提供了前所未有的数据与应用接入开放接口。使外部应用可以直接与浏览器内部的数据直接相连,例如视频影音可直接与microphones及摄像头相联。


连接特性(Class: CONNECTIVITY)

HTML5拥有更有效的服务器推送技术,Server-SentEvent和WebSockets就是其中的两个特性,这两个特性能够帮助实现服务器将数据“推送”到客户端的功能。更有效的连接工作效率,可以实现基于页面的实时聊天,更快速的网页游戏体验,更优化的在线交流。


网页多媒体特性(Class: MULTIMEDIA)

支持网页端的Audio、Video等多媒体功能。

三维、图形及特效特性(Class: 3DGraphics & Effects)

基于SVG、Canvas、WebGL及CSS3的3D功能,视觉效果将大大增强,在线3D网游就是最典型的例子。


性能与集成特性(Class: Performance & Integration)

HTML5会通过XMLHttpRequest2等技术,帮助Web应用和网站在多样化的环境中更快速的工作。最直观的就是加载会更快。


CSS3特性(Class: CSS3)

如果把网页比喻成舞台,文字图片视频这些比喻成演员,那么CSS3就是化妆师和舞美,它控制着网页所有元素的视觉和动作效果。相对于旧的CSS版本,HTML5所支持的CSS3中提供了更多的风格和更强的效果,也提供了更高的灵活性和控制性。


基于以上的功能特性,HTML5将有着极大的想象空间,最典型的应用前景是谷歌的浏览器OS概念——既浏览器取代操作系统,所有软件、APP都运行在云端,用户通过浏览器获取软件服务;在此假设下,Chrome浏览器相当于Windows操作系统,电脑软件(比如Office、Photoshop等等)界面就是Chrome上不同网址的一个个新建窗口,而软件操作界面就是HTML5网页。


技术科普到此,有意了解更多HTML知识的同学,可以看一下Julie Meloni的《HTML与CSS入门经典》。下面讲讲商业应用。



H5又是什么鬼?


HyperText Mark-up Language 5.0 → HTML5 → H5


当然,HTML5是英文规范简称,但H5就完全是国内特定人群的叫法。目前的事实是,H5已经成为微信HTML5网页的专有名词。


以现在的定义,H5特指基于HTML5技术的交互网页应用,以商业用途为主。


以下列举一些H5商业应用场景,供参考:


1、微信H5

目前HTML5应用最多的形式,因为移动端完全不支持Flash,而HTML5在动画展现和交互上基本可以满足企业需求,同时也因为微信的大力支持,HTML5网页作为一种营销的形式被广泛应用,营销圈简称H5。


案例:


H5动画(品牌/产品推广)

ih5.cn/idea/jky81t1 (二维码自动识别)

Uber卡通优惠码


微官网

ih5.cn/idea/jky81t1 (二维码自动识别)

中贸广场


小游戏

ih5.cn/idea/oHZsPnG (二维码自动识别)

CCTV创意答题游戏


H5弹幕

ih5.cn/idea/sXespSU (二维码自动识别)

港囧吐槽大会


节日贺卡

ih5.cn/idea/urtBEoe (二维码自动识别)

中秋贺卡



……

2、交互视频

HTML5对于多媒体的支持,让丰富的视频应用成为可能。iH5的交互视频技术可以将视频、动画、多屏通信等有机结合,极大地丰富了内容的表达方式。


案例:

ih5.cn/idea/LXCAvC8



3、户外大屏交互解决方案

传统的户外大屏交互需要复杂的软件实施,不仅成本极高,并且灵活度低。基于HTML5技术,不需软件实施,内容更新方便快捷。iH5的智墙技术提供了户外大屏交互的解决方案,支持多屏拼接和多点触摸。


案例:

超大多点触摸屏


4、PC HTML5广告

即苹果浏览器不支持Flash之后,谷歌浏览器已在2015年9月不再支持Flash自动播放,在可预见的未来,HTML5将取代Flash作为网页动画广告的首选。


案例:

Eggo Waffle 互联网HTML5广告示例