我从@businessbloomer那里学到了这个！第一部分是一个函数，你可以把它留在函数中。第二部分检查购物车中的特定类别，你可以根据那只猫是否在购物车中取消设置运输方法

// check for shipping class in cart
function cart_has_product_with_shipping_class($slug)
{
    global $woocommerce;
    $product_in_cart = false;
    foreach ($woocommerce->cart->get_cart() as $cart_item_key => $values) {
        $_product = $values['data'];
        $terms    = get_the_terms($_product->id, 'product_shipping_class');
        if ($terms) {
            foreach ($terms as $term) {
                $_shippingclass = $term->slug;
                if ($slug === $_shippingclass) {
                    $product_in_cart = true;
                }
            }
        }
    }
    return $product_in_cart;
}

// remove all but desired for selected_category products
add_filter('woocommerce_package_rates', 'hide_all_but_desired_if_selected_category', 99);
function hide_all_but_desired_if_selected_category($rates)
{
    $categories  = array('selected-category-slug');
    //if selected_category is in the cart
    if (woo_custom_category_is_in_the_cart($categories)) {
        unset($rates['table_rate:24:2']); // zone 1
        unset($rates['table_rate:22']); // zone 2
    }
    return $rates;
}

您可以通过检查您的购物车运输方法获得这些$率