确认加载include.so模块，将注释去掉：
LoadModule include_module libexec/apache2/mod_include.so

AddType部分去掉这两段注释：
AddType text/html .shtml
AddOutputFilter INCLUDES .shtml

Directory目录权限里面找到
Options Indexes FollowSymLinks
增加Includes修改为：
Options Indexes FollowSymLinks Includes IncludesNOEXEC