The document discusses web text encoding standards. It explains that content is encoded when sent from a web server and decoded by browsers, and various methods are used to specify character encoding like the Content-Type HTTP header, HTML meta tags, and attributes on links. It also covers encoding for URLs, forms, and JavaScript, as well as character encoding practices on Alipay pages.

1. Web Text Encoding
元则

2. Decode Transfer Encode
text
browser Web Server
editor
Content-Type: charset=
save as ...
Default charset
html
<meta charset=””

3. 名词
• content-type
• charset
• encoding
• escape

4. Html
• http头部的content-type > html meta 标签
> 链接到外部资源标签的charset属性
• 显示字符：原字符字符, char reference,
html entity (€ &#8364; &euro;)

5. url, form
• url: ASCII only, Percent encoding
• form submit
• ajax submit

6. Javascript
• String.fromCharCode: 通过unicode数值得
到对应字符
• charCodeAt：得到字符unicode数值
• escape, encodeURI, encodeURIComponent

7. alipay
• page, uisvr gbk, why gbk?
• js css utf-8
• ajax utf-8
• sofa
• login goto

8. • 浏览器在地址栏输入中
文参数
• 调试工具