我想显示带有“年”参数的帖子。例如：要显示2020年的帖子，短代码应类似于[存档帖子年份=“2020”]。我尝试了下面的代码，但不起作用。“meta\\u值”可能不正确？任何帮助都将不胜感激。

谢谢

//get archived posts
add_shortcode( \'archived-posts\', \'archived_posts\' );
function archived_posts() {
$atts = shortcode_atts( array( \'year\' => date(\'Y\') ), $atts );
    $buffer = \'<h3>Post Titles</h3>\';
    $q = new WP_Query(array(
        \'post_type\' => \'post\',
        \'posts_per_page\' => -1 ,
        \'meta_key\'       => \'post_date\',
        \'meta_value\'     => $atts[\'year\'],
        \'post_status\' => \'archive\' ,
        //\'year\' => 2021,
    ));
    while ($q->have_posts()) {
        $q->the_post();
        $buffer = $buffer.get_the_title().\'<br>\';
    }
    wp_reset_postdata();
    return $buffer;
}

我可以让代码在年份参数中工作，但现在它每年只显示一个结果。那么可能是环路断了还是什么？！请参阅下面的更新代码。

//get archived posts per year
add_shortcode( \'archived-posts\', \'archived_posts\' );
function archived_posts($atts) {
    $a = shortcode_atts( array( \'year\' => date(\'Y\') ), $atts );

    $q = new WP_Query(array(
        \'post_type\' => \'post\',
        \'posts_per_page\' => -1 ,
        \'post_status\' => \'archive\' ,
        \'year\' => $a[\'year\'],
    ));
    while ($q->have_posts()) {
        $q->the_post();
        $buffer = \'<div class="archived-post-item"><a href="\'.get_permalink().\'">\'.get_the_title().\'</a></div>\';
    }
    wp_reset_postdata();
    return $buffer;
}