这个twentyseventeen_edit_link() 函数返回可访问性友好的链接以编辑帖子或页面。其内容如下：

function twentyseventeen_edit_link() {
    $link = edit_post_link(
        sprintf(
            /* translators: %s: Name of current post */
            __( \'Edit<span class="screen-reader-text"> "%s"</span>\', \'twentyseventeen\' ),
            get_the_title()
        ),
        \'<span class="edit-link">\',
        \'</span>\'
    );
    return $link;
}