您可以使用shortcode_atts 获取您正在传递的类别[home_slider cat=1]. 我想你的分类法是category. 您可以替换为您的分类法。您还可以使用逗号分隔的方式传递多个cat id。对于eg[home_slider cat=1,2,3]. 它将返回该类别帖子的滑块。

function home_slider($params = array()){
    extract(shortcode_atts(array(
        \'cat\' => "",
    ), $params));

    ob_start();
     $args = array(
    \'post_type\'   => \'productslider\',
    \'order\'          => \'DESC\',
    \'orderby\'        => \'date\',
    \'posts_per_page\' => 3,
    \'post_status\' => array(\'publish\'),
    );
     if(!empty($cat))
     {
        if( strpos($cat, \',\' ) !== false ) {
            $cat = explode( \',\' , $cat );
        }
       $args[\'tax_query\'] = array(
                array(
                    \'taxonomy\' => \'category\',
                    \'field\' => \'term_id\',
                    \'terms\' => $cat
                     )
                );
    }
    $hm_sliders = get_posts( $args );?>
    <div class="cp-heroWrapper">
      <div class="slideshow js-slideshow cp_heroSlider">
        <?php
    foreach($hm_sliders as $hm_slider){
    $feat_image = wp_get_attachment_url( get_post_thumbnail_id($hm_slider->ID) );?>
        <div class="slide">
          <div class="slide_img">
            <div class="cp-heroBannerImg">
                <a href="<?php echo get_post_meta($hm_slider->ID, \'imageURlLink\', true );?>" title=""><img src="<?php echo $feat_image; ?>"><div class="bg_overlay"></div></a>
            </div>

            <div class="cp-heading">
              <h2><a href="<?php echo get_post_meta($hm_slider->ID, \'imageURlLink\', true );?>" title=""><?php echo $hm_slider->post_title ?></a></h2>
            </div>

          </div>
        </div>
        <?php } ?>
      </div>
    </div>
    <?php
    return ob_get_clean();
}
add_shortcode( \'home_slider\', \'home_slider\' );