<IfModule mod_rewrite.c>

  RewriteEngine on

  RewriteCond %{REQUEST_FILENAME} !-f

  RewriteCond %{REQUEST_FILENAME} !-d

  RewriteBase /

  RewriteRule . /index.php [L]

  RewriteCond %{HTTP_HOST} ^(www)?web1.yuanqiao.pw$

  RewriteRule ^(/)?$ /web1/index.php [L]

  RewriteCond %{HTTP_HOST} ^(www)?web2.yuanqiao.pw$

  RewriteRule ^(/)?$ /web2/index.php [L]

  RewriteCond %{HTTP_HOST} ^(www)?web3.yuanqiao.pw$

  RewriteRule ^(/)?$ /web3/index.php [L]

</IfModule>