. Htaccess cannot open the browser.

. Htaccess makes it normal for the browser to open a page, but when I put it in the root directory. htaccess, the page cannot be opened again ,. htaccess content: # & nbsp; Helicon & nbsp; ISAPI_Rewrite & nbsp; configuration & nbsp; file # & nbsp ;. htaccess cannot open the browser
A page is normal, but when I put. htaccess in the root directory, the page can no longer be opened,
. Htaccess content:
# Helicon ISAPI_Rewrite configuration file # Version 3.1.0.66
RewriteEngine On
RewriteRule into index.html $ index. php
RewriteRule into index_ OK .html $ index_ OK .php:
Page display:


Internal Server Error


The server encountered an internal error or misconfiguration and was unableto complete your request.
Please contact the server administrator, gg@tom.com and inform them of thetime the error occurred, and anything you might have done that may have causedthe error.
More information about this error may be available in the server errorlog.
------ Solution --------------------
# Is this added?
RewriteEngine On
RewriteBase/
RewriteRule into index.html $ index. php
RewriteRule into index_ OK .html $ index_ OK .php
RewriteCond % {REQUEST_FILENAME }! -F
RewriteCond % {REQUEST_FILENAME }! -D