在主题函数中添加以下代码。php

function action_woocommerce_admin_order_item_headers(  ) 
{ ?>
 <th class="item sortable" colspan="2" data-sort="string-ins"><?php _e( \'Item category\', \'woocommerce\' ); ?></th>
 <?php 
};



// define the woocommerce_admin_order_item_values callback
function action_woocommerce_admin_order_item_values( $_product, $item, $item_id ) 
{ ?>
 <td class="name" colspan="2" >
  <?php
  $termsp = get_the_terms( $_product->id, \'product_cat\' );
  if(!empty($termsp)){
  foreach ($termsp as $term) {
   $_categoryid = $term->term_id;
   if( $term = get_term_by( \'id\', $_categoryid, \'product_cat\' ) ){
   echo $term->name .\', \';
   }
  } } ?>
 </td>
<?php
};

// add the action
add_action( \'woocommerce_admin_order_item_values\', \'action_woocommerce_admin_order_item_values\', 10, 3 );
add_action( \'woocommerce_admin_order_item_headers\', \'action_woocommerce_admin_order_item_headers\', 10, 0 );