添加到function.php
/* Adding excerpt to shop page */
add_action( 'woocommerce_after_shop_loop_item', 'diggs_custom_shop_item', 5);
function diggs_custom_shop_item() {
global $post;
/* product excerpt */
if ( $post->post_excerpt ) {
echo '<div class="diggs-shop-excerpt">' . apply_filters( 'woocommerce_short_description', wp_trim_words($post->post_excerpt,6,' ') ) . '</div>';
}
}