我本来要安装drupal 7下的多站点，可是在 sites-->all下建的子目录下的文件无法访问，一直显示：
403 - Forbidden Error
You are not allowed to access this address.
If the error persists, please contact the website webmaster.If you are the webmaster of this site please log in to Cpanel and check the Error Logs. You will find the exact
reason for this error there.
Common reasons for this error are:
•Incorrect file/directory permissions: Below 644.
In order files to be read by the webserver, their permissions have to be equal or above 644. You can update file permissions with a FTP client or through cPanel's File
•Restrictive Apache directives inside .htaccess file.
There are two Apache directives which can cause this error - 'Deny from' and 'Options -Indexes'.
# Protect files and directories from prying eyes. --- add 3 # before these three lines as below
# Order allow,deny
# Don't show directory listings for URLs which map to a directory.
# Follow symbolic links in this directory.