Question

我在代码学院练习中为假期成本制作模型，到目前为止我定义了三个函数，rental_car_costs带参数days，hotel_cost带参数{ {1}}和nights的参数为plane_ride_cost。代码如下所示：

city

一切正常，我没有问题，但我想创建一个名为def hotel_cost(nights): return hotel_cost(nights) return 140 * nights def plane_ride_cost(city): return plane_ride_cost(city) if "Charlotte": return 183 elif "Tampa": return 220 elif "Pittsburgh": return 222 elif "Los Angeles": return 475 def rental_car_cost(days): rental_car_cost = 40 * days if days >= 7: rental_car_cost -= 50 elif days >= 3: rental_car_cost -= 20 return rental_car_cost的函数，并且我不断超出最大递归深度。代码看起来像这样

trip_cost

我将夜晚的价值传递给了几天，以防我无论如何都尝试过替换夜晚，但我仍然得到完全相同的错误信息。我做错了什么，超出最大深度递归是什么意思？

Answer 1

这应该有效：

def hotel_cost(nights):
    return 140 * nights

def plane_ride_cost(city):
    if city == "Charlotte":
        return 183
    elif city == "Tampa":
        return 220
    elif city == "Pittsburgh":
        return 222
    elif city == "Los Angeles":
        return 475

def rental_car_cost(days):
    rental_car_cost = 40 * days
    if days >= 7:
        rental_car_cost -= 50
    elif days >= 3:
        rental_car_cost -= 20
    return rental_car_cost

Answer 2

    def hotel_cost(nights):
        return 140 * nights
    def plane_ride_cost(city):
        if city == ("Charlotte"):
            return 183
        elif city == ("Tampa"):
            return 220
        elif city == ("Pittsburgh"):
            return 222
        else: 
            return 475
    def rental_car_cost(days):
        if days >= 7:
            return (40 * days) - 50
        elif days >= 3:
            return (40 * days) - 20
        elif days < 3:
            return (40 * days)
        else:
            return 0       
    def trip_cost(city, days):
        return (hotel_cost(days) + plane_ride_cost(city) +         rental_car_cost(days))
        return trip_cost

这个答案有效。

超出最大递归深度：Code Academy; 5/7度假

2 个答案: