如何在wordpress中根据单个页面上的类别过滤帖子?

我已经做了一个产品展示页面使用宇商务插件。我想排序的产品类别的基础上,我可以怎么做呢?我可以在下拉列表中显示类别,但不能根据类别进行排序 这是我到目前为止所做的。

<?php/*Template Name: Products */?>

<?php get_header();



$args = array(
    'post_type' => 'product',
    'meta_key' => $meta_key,
    'orderby' => 'meta_value_num',
    'order' => $order,
    'taxonomy'=> 'product_cat',
//  'tax_query' => array(
//      array(
//          'taxonomy' => 'product_cat',
//          'field'    => 'slug',
//          'terms'    => 'women',
//      ),
//  )
);



?>


<div class="container big">
    <!-- <div class="row"> -->

   <!-- Category Selector -->


         <?php

        $result=new WP_Query($args);
        ?>

  <!-- category -->
  <select class="event-dropdown">

  <option value=""><?php echo esc_attr(__('Select category')); ?></option> 
    <?php 
        $categories = get_categories($args); 
        foreach ($categories as $category) {
            $option .= '<option value="'.$category->slug.'">';
            $option .= $category->cat_name;
            $option .= '</option>';
        }
        echo $option;
    ?>

  </select>


  <!-- category end -->


  <?php


        $total = $result->post_count;


        if ( $i == 0 ) echo '<div class="row up">';

        // the Loop

         if($result->have_posts()){
            while($result->have_posts()){
                $result->the_post();
                $default_img = '<img src="' . site_url() . '/wp-content/uploads/2020/06/noimage.jpg' . '"/>';
                $img = ( get_the_post_thumbnail() ) ? get_the_post_thumbnail() : $default_img;
                $price=  get_post_meta( get_the_ID(), '_regular_price', true);

         ?>



        <div class="col-md-4">
            <div class="idv-product">
           <div class="card"><a href="<?php the_permalink();?>"><?php echo $img?></a></div>
            <div class="text-center"><?php the_title();?></div>
            <hr>
            <!-- <div class="test text-center"> <?php echo $price; ?></div>  -->
             <div class="test text-center"><?php echo  woocommerce_template_single_price();?></div>
           </div>  
          </div>



        <?php $i++;
            if($i== $total){
            echo '</div>';  
            } else {
              if($i % 3 ==0){ echo'</div><div class="row up">';  }
                    }


          }
          /* Restore original Post Data */

        } 
        ?>

<!-- old code -->
   </div><!-- constainer -->


<?php get_footer();?>

如何根据所选类别显示产品(过帐)?

结束