以下重新访问的代码将购物车项目小计更改为产品+颜色选项的计算总和，并将此更改反映到购物车总计。下单时，它会将选项另存为订单项元数据。

代码：

// Display Select field before add to cart button
add_action( \'woocommerce_before_add_to_cart_button\', \'colors_options_before_add_to_cart_button\' );
function colors_options_before_add_to_cart_button() {
    global $product;

    // Only on simple products
    if( ! $product->is_type(\'simple\') ) return;

    $colors = $product->get_attribute( \'color\' );

    // When product colors are available
    if ( ! empty($colors) && $color_price = $product->get_meta(\'avp-ral-paint-price\') ) :

    $options  = array( \'\' => __("Choose your color") );

    foreach ( (array) explode( \',\', $colors ) as $color ) {
        $options[$color] = $color;
    }

    echo \'<p><strong>\' . __("Standard Powder Coat") . \':</strong> \' . wc_price( $color_price ) .\'</p>\';

    woocommerce_form_field( \'color\', array(
        \'type\'     => \'select\',
        \'class\'    => array(\'form-row-wide product-color\'),
        \'label\'    => __(\'Standard Colors\'),
        \'options\'  => $options,
        \'required\' => true,
    ), \'\' );

    echo \'<br>\';
    endif;
}

// Color option validation
add_filter( \'woocommerce_add_to_cart_validation\', \'filter_add_to_cart_validation\', 10, 2 );
function filter_add_to_cart_validation( $passed, $product_id ) {
    $product = wc_get_product($product_id);

    if( $product->is_type(\'simple\') && $product->get_attribute(\'color\') &&
    $product->get_meta(\'avp-ral-paint-price\') && isset($_POST[\'pa-color\']) && empty($_POST[\'pa-color\']) ) {
        wc_add_notice( __("Choose a Color (Mill for No Paint)", "woocommerce" ), \'error\' );
        $passed = false;
    }
    return $passed;
}

// Add color option as custom cart item data (+ prices)
add_filter( \'woocommerce_add_cart_item_data\', \'add_color_option_as_cart_item_data\', 10, 2 );
function add_color_option_as_cart_item_data( $cart_item_data, $product_id ) {
    if( isset($_POST[\'color\']) && ! empty($_POST[\'color\']) ) {
        $product = wc_get_product($product_id);

        if( $color_price = $product->get_meta(\'avp-ral-paint-price\') ) {
            $cart_item_data[\'color\']         = esc_attr($_POST[\'color\']);
            $cart_item_data[\'color-price\']   = $color_price;
            $cart_item_data[\'default-price\'] = wc_get_price_to_display($product);
            $cart_item_data[\'new-price\']     = $product->get_price() + $color_price;
        }
    }
    return $cart_item_data;
}

// Display select color option on cart item
add_filter( \'woocommerce_get_item_data\', \'display_color_option_on_cart_item\', 10, 2 );
function display_color_option_on_cart_item( $cart_item_data, $cart_item ) {
    if ( isset($cart_item[\'color\']) && isset($cart_item[\'color-price\']) ){
        $cart_item_data[] = array(
            \'name\' => __(\'Color\'),
            \'value\' => $cart_item[\'color\'] . \' (\' . wc_price($cart_item[\'color-price\']) . \')\',
        );
    }
    return $cart_item_data;
}

// Display the default product price (instead of the calculated one)
add_filter( \'woocommerce_cart_item_price\', \'filter_cart_item_price\', 10, 2 );
function filter_cart_item_price( $price, $cart_item ) {
    if ( isset($cart_item[\'color\']) && isset($cart_item[\'default-price\']) ){
        $price = wc_price($cart_item[\'default-price\']);
    }
    return $price;
}

// Customizing cart item price subtotal
add_action( \'woocommerce_before_calculate_totals\', \'set_cart_item_calculated_price\', 10, 1 );
function set_cart_item_calculated_price( $cart ) {
    if ( is_admin() && ! defined( \'DOING_AJAX\' ) )
        return;

    // Required since Woocommerce version 3.2 for cart items properties changes
    if ( did_action( \'woocommerce_before_calculate_totals\' ) >= 2 )
        return;

    // Loop through cart items
    foreach ( $cart->get_cart() as $cart_item ) {
        // Set the new calculated price
        if( isset($cart_item[\'color\']) && isset($cart_item[\'new-price\']) ) {
            $cart_item[\'data\']->set_price( $cart_item[\'new-price\'] );
        }
    }
}

// Save save color option as order item meta data (and display it everywhere)
add_filter( \'woocommerce_checkout_create_order_line_item\', \'save_color_option_as_order_item_meta_data\', 10, 4 );
function save_color_option_as_order_item_meta_data( $item, $cart_item_key, $cart_item, $order ) {
    if( isset($cart_item[\'color\']) && isset($cart_item[\'color-price\']) ) {
        $item->update_meta_data( \'pa_color\', $cart_item[\'color\'] . \' (\' . wc_price($cart_item[\'color-price\']) . \')\' );
    }
    return $item;
}

<小时>On single Product page: