appache的httpd里面摘出来的，看了老半天没看懂，不知是我语法不好还是专业性太强
Each directory to which Apache has access can be configured with respect
# to which services and features are allowed and/or disabled in that
# directory (and its subdirectories).

不需要字句考究，看个大概就可，以及其下面的例子：
<Directory />
AllowOverride None
Order deny,allow
Deny from all #所有根目录之下所有内容都拒绝访问
</Directory>
<Directory "/usr/local/cms/webgui/content">
Options Indexes FollowSymLinks
AllowOverride None
Order allow,deny
Allow from all #却定义这个目录可以让全世界来访问
</Directory>
可略知是说，每个目录可以自订其目录的性质或特性。