嗨，我已经在woocommerce网站添加了一个自定义代码，用于在主页中显示数量和添加到购物车选项。一切正常，如更改数量和添加到购物车，但问题是一旦选择了数量并单击添加到购物车，它将刷新页面，相同的产品数量将反映到所有产品。
这是我添加的代码

// Display variations dropdowns on shop page for variable products
 add_filter( 'woocommerce_loop_add_to_cart_link', 'woo_display_variation_dropdown_on_shop_page' );

 function woo_display_variation_dropdown_on_shop_page() {

global $product;

if( $product->is_type( 'variable' )) {

$attribute_keys = array_keys( $product->get_attributes() );
?>

<form class="variations_form cart" method="post" enctype='multipart/form-data' data-product_id="<?php echo absint( $product->id ); ?>" data-product_variations="<?php echo htmlspecialchars( json_encode( $product->get_available_variations() ) ) ?>">
    <?php do_action( 'woocommerce_before_variations_form' ); ?>

    <?php if ( empty( $product->get_available_variations() ) && false !== $product->get_available_variations() ) : ?>
        <p class="stock out-of-stock"><?php _e( 'This product is currently out of stock and unavailable.', 'woocommerce' ); ?></p>
    <?php else : ?>
        <table class="variations" cellspacing="0">
            <tbody>
                <?php foreach ( $product->get_variation_attributes() as $attribute_name => $options ) : ?>
                    <tr>
                        <td class="label"><label for="<?php echo sanitize_title( $attribute_name ); ?>"><?php echo wc_attribute_label( $attribute_name ); ?></label></td>
                        <td class="value">
                            <?php
                                $selected = isset( $_REQUEST[ 'attribute_' . sanitize_title( $attribute_name ) ] ) ? wc_clean( urldecode( $_REQUEST[ 'attribute_' . sanitize_title( $attribute_name ) ] ) ) : $product->get_variation_default_attribute( $attribute_name );
                                wc_dropdown_variation_attribute_options( array( 'options' => $options, 'attribute' => $attribute_name, 'product' => $product, 'selected' => $selected ) );
                                echo end( $attribute_keys ) === $attribute_name ? apply_filters( 'woocommerce_reset_variations_link', '<a class="reset_variations" href="#">' . __( 'Clear', 'woocommerce' ) . '</a>' ) : '';
                            ?>
                        </td>
                    </tr>
                <?php endforeach;?>
            </tbody>
        </table>

        <?php do_action( 'woocommerce_before_add_to_cart_button' ); ?>

        <div class="single_variation_wrap">
            <?php
                /**
                 * woocommerce_before_single_variation Hook.
                 */
                do_action( 'woocommerce_before_single_variation' );

                /**
                 * woocommerce_single_variation hook. Used to output the cart button and placeholder for variation data.
                 * @since 2.4.0
                 * @hooked woocommerce_single_variation - 10 Empty div for variation data.
                 * @hooked woocommerce_single_variation_add_to_cart_button - 20 Qty and cart button.
                 */
                do_action( 'woocommerce_single_variation' );

                /**
                 * woocommerce_after_single_variation Hook.
                 */
                do_action( 'woocommerce_after_single_variation' );
            ?>
        </div>

        <?php do_action( 'woocommerce_after_add_to_cart_button' ); ?>
    <?php endif; ?>

    <?php do_action( 'woocommerce_after_variations_form' ); ?>
</form>

<?php } else {

echo sprintf( '<a rel="nofollow" href="%s" data-quantity="%s" data-product_id="%s" data-product_sku="%s" class="%s">%s</a>',
        esc_url( $product->add_to_cart_url() ),
        esc_attr( isset( $quantity ) ? $quantity : 1 ),
        esc_attr( $product->id ),
        esc_attr( $product->get_sku() ),
        esc_attr( isset( $class ) ? $class : 'button' ),
        esc_html( $product->add_to_cart_text() )
    );

}

}