1. Web Text Encoding

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

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

4. Html
• http content-type > html meta
> charset
• , char reference,
html entity (€ &#8364; &euro;)

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

6. Javascript
• String.fromCharCode: unicode
• charCodeAt unicode
• escape, encodeURI, encodeURIComponent

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

8. •
•