GET /?style HTTP/1.1
Host: <BucketName-APPID>.pic.<Region>.myqcloud.com 
Date: GMT Date
Authorization: Auth String

GET /?style HTTP/1.1

<?xml version="1.0" encoding="UTF-8" ?>
<GetStyle>
  <StyleName>string</StyleName>
</GetStyle>

<StyleList>
  <StyleRule>
  <StyleName>string</StyleName>
  <StyleBody>string</StyleBody>
</StyleRule>
  <StyleRule>
  <StyleName>string</StyleName>
  <StyleBody>string</StyleBody>
</StyleRule>
</StyleList>