如何创建菜单

如何解决如何创建菜单

我正在努力使用 python3 编辑器创建菜单。当我试图回答这个问题时，它并没有增加总成本。添加一个项目，总成本仍然是 0.00 美元。这是我需要它做的事情。

• 从带有选项的菜单中选择。我希望它要求用户 不断从 5 个水果列表中选择“完成”一词。
• 对于每个选项，在用户愿意支付的总金额上加一个数字 付款并打印他们订购的东西。
• 当他们输入完成时，我应该 能够停止询问用户并打印出他们的销售总额。

items = ["lemons","apples","bananas","pineapple","grapes"]
print(items)
print()
cost=0

order = input("Hello! Would you like some fruit? I have [bananas],[lemons],[apples],[pineapple] and [grapes],when you are done please type [done]").lower()
total=[]
start=False  
while start:
    print()
    if order == "lemons":
        cost += 1
        total.append("lemons")
        print("you ordered 1",order,)
        print()
    elif order == "apples":
        cost += 2
        total.append("apples")
        print("you ordered 1",)
        print()
    elif order == "bananas":
        cost += 2.50
        total.append("bananas")
        print("you ordered 1",)
        print()
    elif order == "pineapples":
        cost += 2.15
        total.append("pineapples")
        print("you ordered  1",) 
    elif order == "done":
        break
    else:
   print("Im sorry that is not on the list")
        print(items)
        print("You can type [done] when you finish ordering")
        print()
             
currency = "${:,.2f}".format(cost)
print("Your total is",currency)