.htaccess 实现http重定向（301）到https

以下是代码

<IfModule mod_rewrite.c>
  Options +FollowSymlinks -Multiviews
  RewriteEngine On

  RewriteCond %{REQUEST_FILENAME} !-d
  RewriteCond %{REQUEST_FILENAME} !-f
  RewriteRule ^(.*)$ index.php?s=$1 [QSA,PT,L]
  #301重定向
  RewriteCond %{HTTPS} off
  RewriteRule .* https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]
</IfModule>