我想你可以用get_terms() 为了这个。这只是一些简单的最小代码，我想您还需要添加永久链接、术语描述或其他内容。

然而，我刚刚测试了这段代码（现在使用分类法“course”进行了测试），它可以正常工作。

我会尽最大努力对代码进行注释：

// our current taxonomy slug
// If you want to get the current taxonomy automatically try using $wp_query->get_queried_object();
    $taxonomy = \'course\';

// we get the terms of the taxonomy \'course\', but only top-level-terms with (parent => 0)
$top_level_terms = get_terms( array(
    \'taxonomy\'      => $taxonomy,
    \'parent\'        => \'0\',
    \'hide_empty\'    => false,
) );

// only if some terms actually exists, we move on
if ($top_level_terms) {

    echo \'<ul class="top-level-terms">\';

    foreach ($top_level_terms as $top_level_term) {

        // the id of the top-level-term, we need this further down
        $top_term_id = $top_level_term->term_id;
        // the name of the top-level-term
        $top_term_name = $top_level_term->name;
        // the current used taxonomy
        $top_term_tax = $top_level_term->taxonomy;

        // note that the closing </li> is set further down, so that we can add a sub list item correctly
        echo \'<li class="top-level-term"><strong>\'.$top_term_name.\'</strong>\';

        // here we get the child-child terms
        // for this we are using \'child_of\' => $top_term_id
        // I also set \'parent\' => $top_term_id here, with this line you will only see this level and no further childs
        $second_level_terms = get_terms( array(
            \'taxonomy\' => $top_term_tax, // you could also use $taxonomy as defined in the first lines
            \'child_of\' => $top_term_id,
            \'parent\' => $top_term_id, // disable this line to see more child elements (child-child-child-terms)
            \'hide_empty\' => false,
        ) );

        // start a second list element if we have second level terms
        if ($second_level_terms) {

            echo \'<ul class="second-level-terms">\';

            foreach ($second_level_terms as $second_level_term) {

                $second_term_name = $second_level_term->name;

                echo \'<li class="second-level-term">\'.$second_term_name.\'</li>\';

            }// END foreach

            echo \'</ul><!-- END .second-level-terms -->\';

        }// END if

        echo \'</li><!-- END .top-level-term -->\';

    }// END foreach

    echo \'</ul><!-- END .top-level-terms -->\';

}// END if

还可以尝试使用print_r($top_level_term); 例如，在第一个foreach循环中。这样，你就可以看到一个术语附带的所有信息。

我想说的是，您应该在常规分类法归档模板中使用此代码，而不要使用该文件taxonomy-course-photoshop.php. 因为那样的话，每个术语都需要一个单独的模板文件，这是不可行的。

Edit:此外，确保您有一些职位分配给单个条款和子条款。否则，将根本不显示术语！

<小时>Update:是的，您可以自动获取当前分类法和术语数据。

如果你在里面工作taxonomy-course.php 然后您可以尝试以下操作：

        //get the current object
        $current = $wp_query->get_queried_object();

        // try  var_dump($current);  to see all available data!

        // return the ID of the current term
        // i.e. ID of term "Photoshop" is "26", so we get "26" if we are viewing "Photoshop"
        $current_term_id = $current->term_id;

        // return the nicename of the current term
        // i.e. returns "Photoshop"
        // or "ps-thematic#1" if we are on a child term of "Photoshop"
        $current_name = $current->name;

        // returns the current taxonomy slug we are in
        // i.e. it will return "course"
        $current_taxonomy = $current->taxonomy;

        // returns the ID of the parent, if we have a parent
        // i.e. if we are viewing "ps-thematic#1" it will return the ID of "Photoshop", 26
        // if we are viewing "Photoshop", it will return 0, because "Photoshop" is a top level term
        $current_parent = $current->parent;

        // display name of current term, i.e. "Photoshop"
        echo \'<strong>\'.$current_name.\'</strong>\';

        $sub_terms = get_terms( array(
            \'taxonomy\'      => $current_taxonomy,
            \'child_of\'      => $current_term_id,
            \'hide_empty\'    => false,
        ) );

        // only start if some sub terms exist
        if ($sub_terms) {

            // try  var_dump($sub_terms);  to see all available data!

            echo \'<ul class="sub-terms">\';

            foreach ($sub_terms as $sub_term) {

                // try  var_dump($sub_term);  to see all available data!

                // only show the name for the example, "ps-thematic#1"
                echo \'<li>\'.$sub_term->name.\'</li>\';

            }// END foreach

            echo \'</ul><!-- END .sub-terms -->\';

        }// END if

因此，如果我们正在查看“Photoshop”，则上述功能仅显示：
Photoshop
-ps主题#1
-ps主题#2

它不显示“后效应”或儿童，ae主题1或ae主题2。

还可以使用var_dump($current);.您将看到所有可用信息。例如，正如您将在上面看到的，我在函数中留下了一些代码$current_parent = $current->parent;.
例如，您可以检查：

            // check if current parent is not = 0
            if ($current_parent != \'0\') {
                // code if parent is NOT 0
                // that always means that we are viewing a child
            } else {
                // code if parent is 0
                // if parent is 0 we are sure we are on a top level
            }

但是还有更多的信息/数据$current 也许你可以用。我希望这有帮助。