我已经创建了一个简单的python程序，让用户驾驶不同的汽车。用户将输入他们的全名，地址和电话号码。然后用户将被询问他们希望驾驶哪辆车，最多选择五辆车。这些车已经设定了价格，总账单将在程序结束时加起来，然而，我目前无法找到解决方案来计算用户的总成本。程序还询问用户希望在车内进行多少圈比赛，我已经计算出如何显示圈数的总成本，但是需要以某种方式把它加到总成本中。谢谢!

• • 代码**

cars_list = ["Lamborghini", "Ferrari", "Porsche", "Audi", "BMW"]
cars_prices = {"Lamborghini":50, "Ferrari":45, "Porsche":45, "Audi":30, "BMW":30}
laps_cost = 30
final_cost = []
final_order = {}

cust_num_cars = int(input("Please enter the number of cars you want to drive in this session: "))
while cust_num_cars > 5:
    cust_num_cars = int(input("You can only drive a maximum of five cars! Please try again.\n Enter cars: "))

for index in range(cust_num_cars):
    print("\nChoose a car type from the following list", cars_list)
    select_cars = input("Select a car type: ")
    if select_cars in cars_list:
        print("\nYou have selected to drive the", {select_cars})
        final_cost.append(cars_prices[select_cars])
    if select_cars not in cars_list:
        print("\n",{select_cars}, "is not in the available list of cars to drive!")

cust_name = input("\nPlease enter your full name: ")
cust_address = input("Please enter your full address: ")
cust_phone_num = int(input("Please enter your mobile phone number: "))

add_laps = input("\nWould you like to drive additional laps? (Yes/No): ")
if add_laps == "Yes":
    print("\nYou have selected an additional lap!")
    num_of_laps = int(input("Number of additional laps: "))
    print("\nYou have selected", num_of_laps, "additional laps!")
    final_cost.append(cars_prices[add_laps])
    sum = num_of_laps * laps_cost
else:
    print("\nYou have selected no additional extra laps.")

print("Total laps cost: £",final_cost)
print("\n----Order & Billing summary----")
print("Customer Full Name:", cust_name)
print("Customer Address:", cust_address)
print("Customer Phone Number", cust_phone_num)
print("Total cost", final_cost.append(cars_prices))

我已经尝试了我在Python中的所有方法来计算最终成本，我已经计算出了圈数的总成本，但无法计算出如何将其添加到所选汽车的成本中，然后显示总成本。