您可以通过挂接save\\u post操作并更新特色图像自定义字段轻松完成此操作。在您的功能中。php文件，添加以下代码：

function interit_featured_image( $post_id ) {

    // Get Parent ID
    $parent_id = wp_get_post_parent_id( $post_id );

    // Only proceed if this page has a parent
    if ($parent_id != 0) :

        // Get Parent Thumbnail
        $parent_thumbnail = get_post_meta( $parent_id, \'_thumbnail_id\', true );

        // Get Parent Caption Data (for the other plugin)
        $parent_caption = get_post_meta( $parent_id, \'_cc_featured_image_caption\', true );

        // Set Thumbnail
        update_post_meta( $post_id, \'_thumbnail_id\', $parent_thumbnail );

        // Set Caption (again, for the other plugin)
        update_post_meta( $post_id, \'_cc_featured_image_caption\', $parent_caption );


    endif;

}
add_action( \'save_post\', \'interit_featured_image\' );