将下面的代码添加到主题的 functions.php ： ~~~ /** * WordPress 添加面包屑导航 * https://www.wpdaxue.com/wordpress-add-a-breadcrumb.html */ function cmp_breadcrumbs() { $delimiter = '»'; // 分隔符 $before = '<span class="current">'; // 在当前链接前插入 $after = '</span>'; // 在当前链接后插入 if ( !is_home() && !is_front_page() || is_paged() ) { echo '<div itemscope itemtype="http://schema.org/WebPage" id="crumbs">'.__( '位置：' , 'cmp' ); global $post; $homeLink = home_url(); echo ' <a itemprop="breadcrumb" href="' . $homeLink . '">' . __( '首页' , 'cmp' ) . '</a> ' . $delimiter . ' '; if ( is_category() ) { // 分类 存档 global $wp_query; $cat_obj = $wp_query->get_queried_object(); $thisCat = $cat_obj->term_id; $thisCat = get_category($thisCat); $parentCat = get_category($thisCat->parent); if ($thisCat->parent != 0){ $cat_code = get_category_parents($parentCat, TRUE, ' ' . $delimiter . ' '); echo $cat_code = str_replace ('<a','<a itemprop="breadcrumb"', $cat_code ); } echo $before . '' . single_cat_title('', false) . '' . $after; } elseif ( is_day() ) { // 天 存档 echo '<a itemprop="breadcrumb" href="' . get_year_link(get_the_time('Y')) . '">' . get_the_time('Y') . '</a> ' . $delimiter . ' '; echo '<a itemprop="breadcrumb" href="' . get_month_link(get_the_time('Y'),get_the_time('m')) . '">' . get_the_time('F') . '</a> ' . $delimiter . ' '; echo $before . get_the_time('d') . $after; } elseif ( is_month() ) { // 月 存档 echo '<a itemprop="breadcrumb" href="' . get_year_link(get_the_time('Y')) . '">' . get_the_time('Y') . '</a> ' . $delimiter . ' '; echo $before . get_the_time('F') . $after; } elseif ( is_year() ) { // 年 存档 echo $before . get_the_time('Y') . $after; } elseif ( is_single() && !is_attachment() ) { // 文章 if ( get_post_type() != 'post' ) { // 自定义文章类型 $post_type = get_post_type_object(get_post_type()); $slug = $post_type->rewrite; echo '<a itemprop="breadcrumb" href="' . $homeLink . '/' . $slug['slug'] . '/">' . $post_type->labels->singular_name . '</a> ' . $delimiter . ' '; echo $before . get_the_title() . $after; } else { // 文章 post $cat = get_the_category(); $cat = $cat[0]; $cat_code = get_category_parents($cat, TRUE, ' ' . $delimiter . ' '); echo $cat_code = str_replace ('<a','<a itemprop="breadcrumb"', $cat_code ); echo $before . get_the_title() . $after; } } elseif ( !is_single() && !is_page() && get_post_type() != 'post' ) { $post_type = get_post_type_object(get_post_type()); echo $before . $post_type->labels->singular_name . $after; } elseif ( is_attachment() ) { // 附件 $parent = get_post($post->post_parent); $cat = get_the_category($parent->ID); $cat = $cat[0]; echo '<a itemprop="breadcrumb" href="' . get_permalink($parent) . '">' . $parent->post_title . '</a> ' . $delimiter . ' '; echo $before . get_the_title() . $after; } elseif ( is_page() && !$post->post_parent ) { // 页面 echo $before . get_the_title() . $after; } elseif ( is_page() && $post->post_parent ) { // 父级页面 $parent_id = $post->post_parent; $breadcrumbs = array(); while ($parent_id) { $page = get_page($parent_id); $breadcrumbs[] = '<a itemprop="breadcrumb" href="' . get_permalink($page->ID) . '">' . get_the_title($page->ID) . '</a>'; $parent_id = $page->post_parent; } $breadcrumbs = array_reverse($breadcrumbs); foreach ($breadcrumbs as $crumb) echo $crumb . ' ' . $delimiter . ' '; echo $before . get_the_title() . $after; } elseif ( is_search() ) { // 搜索结果 echo $before ; printf( __( 'Search Results for: %s', 'cmp' ), get_search_query() ); echo $after; } elseif ( is_tag() ) { //标签 存档 echo $before ; printf( __( 'Tag Archives: %s', 'cmp' ), single_tag_title( '', false ) ); echo $after; } elseif ( is_author() ) { // 作者存档 global $author; $userdata = get_userdata($author); echo $before ; printf( __( 'Author Archives: %s', 'cmp' ), $userdata->display_name ); echo $after; } elseif ( is_404() ) { // 404 页面 echo $before; _e( 'Not Found', 'cmp' ); echo $after; } if ( get_query_var('paged') ) { // 分页 if ( is_category() || is_day() || is_month() || is_year() || is_search() || is_tag() || is_author() ) echo sprintf( __( '( Page %s )', 'cmp' ), get_query_var('paged') ); } echo '</div>'; } } ~~~ 在主题模板中使用以下代码调用： `<?php if(function_exists('cmp_breadcrumbs')) cmp_breadcrumbs();?>` 参考： https://www.wpdaxue.com/wordpress-add-a-breadcrumb.html https://developer.wordpress.org/reference/functions/query_posts/