WooCommerce数量字段重复

Question

在数量字段中添加多个并选择“添加到购物篮”时，该页面上的所有产品将在输入字段中显示该数量编号。

代码：

/**
* Add quantity field on the shop page.
*/
function ace_shop_page_add_quantity_field() {
/** @var WC_Product $product */
$product = wc_get_product( get_the_ID() );
if ( ! $product->is_sold_individually() && 'variable' != $product- 
>get_type() && $product->is_purchasable() ) {
    woocommerce_quantity_input( array( 'min_value' => 1, 'max_value' => $product->backorders_allowed() ? '' : $product->get_stock_quantity() ) );
}
}
add_action( 'woocommerce_after_shop_loop_item', 'ace_shop_page_add_quantity_field', 12 );


/**
* Add required JavaScript.
*/
function ace_shop_page_quantity_add_to_cart_handler() {
wc_enqueue_js( '
    $(".woocommerce .products").on("click", ".quantity input", function() {
        return false;
    });
    $(".woocommerce .products").on("change input", ".quantity .qty", function() {
        var add_to_cart_button = $(this).parents( ".product" ).find(".add_to_cart_button");
        // For AJAX add-to-cart actions
        add_to_cart_button.data("quantity", $(this).val());
        // For non-AJAX add-to-cart actions
        add_to_cart_button.attr("href", "?add-to-cart=" + add_to_cart_button.attr("data-product_id") + "&quantity=" + $(this).val());
    });
    // Trigger on Enter press
    $(".woocommerce .products").on("keypress", ".quantity .qty", function(e) {
        if ((e.which||e.keyCode) === 13) {
            $( this ).parents(".product").find(".add_to_cart_button").trigger("click");
        }
    });
' );
}