我有示例代码：

                        <?php 
                                $defaults = array(
                                    \'show_option_all\'   => \'\',
                                    \'show_option_none\'  => \'\',
                                    \'orderby\'           => \'id\',
                                    \'order\'             => \'ASC\',
                                    \'show_count\'        => 1,
                                    \'hide_empty\'        => 0,
                                    \'child_of\'          => 0,
                                    \'exclude\'           => \'\',
                                    \'echo\'              => 1,
                                    \'selected\'          => 1,
                                    \'hierarchical\'      => 1,
                                    \'name\'              => \'cat\',
                                    \'id\'                => \'mySelect\',
                                    \'class\'             => \'postform\',
                                    \'depth\'             => 0,
                                    \'tab_index\'         => 1,
                                    \'taxonomy\'          => \'category\',
                                    \'hide_if_empty\'     => false,
                                    \'option_none_value\' => -1,
                                    \'value_field\'       => \'name\',
                                    \'required\'          => false,
                                );
                                wp_dropdown_categories( $defaults )
                        ?>

Html将具有以下内容：

<option class="level-1" value="Name category 1">Name category 1 (38)</option>

如何在名称类别旁边显示术语ID，如下所示：

<option class="level-1" value="Name category 1">Name category 1 (ID-161) (38)</option>

谢谢你的帮助

function my_add_cat_id($category_name, $category) {
    return $category_name ." (ID-".$category->term_id.")";
}
add_filter(\'list_cats\', \'my_add_cat_id\', 10,2);