您只需检查用户是否具有特定角色，如果他们试图访问管理面板，则可以将其重定向到主页。

function redirect_to_front(){
    // Check if we are on the admin panel, and the user is not an admin
    if( is_admin() && !current_user_can( \'administrator\' ) ){
        // Redirect them back to front
        wp_safe_redirect( site_url() );
        exit();
    }
}
add_action(\'init\', \'redirect_to_front\');