https://www.ludou.org/remove-admin-menu-in-wordpress.html
function remove_submenu() {// 删除"设置"下面的子菜单"隐私"remove_submenu_page( 'options-general.php', 'options-privacy.php' );// 删除"外观"下面的子菜单"编辑"remove_submenu_page( 'themes.php', 'theme-editor.php' );
}if ( is_admin() ) {add_action('admin_init','remove_submenu');
}