質問: 1; wp_list_categories(apply_filters('widget_categories_args', $cat_args));
回答: 試行錯誤の後、これがうまくいくようになったのは.... $cat_args = array('orderby' => 'count'); $cat_args['title_li'] = ''; $cat_args['exclude_tree'] = 1; $cat_args['exclude'] = 1; $cat_args['depth'] = 1; wp_list_categories(apply_filters('widget_categories_args', $cat_args));