文件夹，请求URI和baseurl的重定向

Question

我需要一起使用所有这些htaccess代码。

RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^ index.html [L]

# If an existing asset or directory is requested go to it as it is
RewriteCond %{DOCUMENT_ROOT}%{REQUEST_URI} -f [OR]  
RewriteCond %{DOCUMENT_ROOT}%{REQUEST_URI} -d  
RewriteRule ^ - [L]

RewriteCond %{REQUEST_URI} ^.*/$
RewriteCond %{REQUEST_URI} !^/$
RewriteRule ^(.*)/$ $1 [R,QSA,L]

能请您帮我吗？