您可以在测试添加子​​域名的限制。
此外，你必须避免去除尾随斜杠的文件夹。（否则：循环 - > 500错误）

You can add a restriction on test subdomain.
Also, you have to avoid removing trailing slash for folders (otherwise: loop -> 500 error).

那么你的htaccess将成为

Your htaccess would then become

<IfModule mod_rewrite.c>
    <IfModule mod_negotiation.c>
        Options -MultiViews
    </IfModule>

    RewriteEngine On

    # Don't touch anything when coming from test subdomain
    RewriteCond %{HTTP_HOST} ^test\. [NC]
    RewriteRule ^ - [L]

    # Redirect Trailing Slashes...
    RewriteCond %{REQUEST_FILENAME} !-d
    RewriteRule ^(.+)/$ /$1 [L,R=301]

    # Handle Front Controller...
    RewriteCond %{REQUEST_FILENAME} !-d
    RewriteCond %{REQUEST_FILENAME} !-f
    RewriteRule ^ /index.php [L]
</IfModule>