您可以尝试使用Woocommerce的get_product_attributes（）函数。这将返回一个产品属性数组，其中每个属性是一个包含属性名称和值的对象。

add_action( 'woocommerce_shop_loop_item_title', 'display_custom_attribute' );
function display_custom_attribute() {
    global $product;

    // Gettting all product attributes
    $attributes = $product->get_attributes();

    // confirming if the attribute you want to display exist
    // don't forget to replace your custom attribute name
    if ( isset( $attributes['your_custom_attribute_name'] ) ) {
        // retrieving the attribute object
        $attribute = $attributes['your_custom_attribute_name'];

        // then retrieving the attribute name and value
        $attribute_name = $attribute->get_name();
        $attribute_value = $attribute->get_options()[0]; // This is assuming that the attribute has only one value

        // finally echoing the attribute name and value
        echo '<div class="custom-attribute">';
        echo '<span class="attribute-name">' . $attribute_name . ': </span>';
        echo '<span class="attribute-value">' . $attribute_value . '</span>';
        echo '</div>';
    }
}