RewriteEngine on
RewriteBase /
#如果不是目录，才会执行下一条RewriteRule
RewriteCond %{REQUEST_FILENAME} !-d
#如果不是文件，才会执行下一条RewriteRule
RewriteCond %{REQUEST_FILENAME} !-f
#判断url是否以斜杠“/”结尾；
RewriteCond %{REQUEST_URI} !(.*)/$
RewriteRule ^(.*)$ $1/ [L,R=301]

RewriteRule ([\x80-\xffa-zA-Z]{1,})-([0-9]{1,})-([a-zA-Z]{1,}).html$ test.php?action=$1&id=$2&ac=$3
#RewriteRule ^about(/?)$ ?ac=about
RewriteRule ^about(/?)$ ?ac=about
RewriteRule ^histroy(/?)$ ?ac=histroy