如何在woocommerce中显示循环中的数量选择？

function woocommerce_quantity_input() {
    global $product;
    
    if (is_singular('product')) {
        $max_value = apply_filters('woocommerce_quantity_input_max', $product->get_max_purchase_quantity(), $product);
        $min_value = apply_filters('woocommerce_quantity_input_min', 1, $product);
        $step_value = apply_filters('woocommerce_quantity_input_step', 1, $product);
    } else {
        $max_value = apply_filters('woocommerce_quantity_input_max', '', $product);
        $min_value = apply_filters('woocommerce_quantity_input_min', 0, $product);
        $step_value = apply_filters('woocommerce_quantity_input_step', 1, $product);
    }

    echo '<div class="quantity">';
    echo '<input type="number" class="input-text qty text" step="' . esc_attr($step_value) . '" min="' . esc_attr($min_value) . '" max="' . esc_attr($max_value) . '" name="quantity" value="' . esc_attr(isset($_POST['quantity']) ? $_POST['quantity'] : 1) . '" title="' . esc_attr_x('Qty', 'Product quantity input tooltip', 'woocommerce') . '" size="4" pattern="[0-9]*" inputmode="numeric" />';
    echo '</div>';
}

woocommerce_quantity_input();