有时候，我们会想在单个SAE应该里绑定多个域名，每个域名对应一个子目录。比如说，blog.xxx.com绑定到"/blog"目录，bbs.xxxx.x.om绑定到"/bbs"目录。本文将介绍在SAE上绑定域名到子目录的方法。

name: star7th
version: 1
handle:
- rewrite:if (  in_header["host"] ~ "blog.star7th.com" && path ~ "^(?!blog/)(.*)" ) goto "blog/$1?%{QUERY_STRING}"
- rewrite:if (  in_header["host"] ~ "pic3d.star7th.com" && path ~ "^(?!pic3d/)(.*)" ) goto "pic3d/$1?%{QUERY_STRING}"
- rewrite:if (  in_header["host"] ~ "www.star7th.com"&& !is_file() &&path ~ "^(?!www/)(.*)" ) goto "www/$1?%{QUERY_STRING}"