Question

我对编码很陌生，所以请耐心等待，但我如何使这段代码有效？我试图获取用户输入的信息并将其输入我的功能，以便我可以打印总数。

def hotel_cost(nights):
    return nights * 140

def plane_cost(city):
    if city == "Atlanta":
        return 220
    elif city == "Boston":
        return 550
    elif city == "Chicago":
        return 900

def rental_car_cost(days):
    if days >= 7:
        return days * 100 - 50
    elif days >= 1 and days <= 5:
        return days * 100 - 20

a = raw_input("Please choose number of nights: ")
b = raw_input("Please choose which city you are flying to (Atlanta, Boston, Chicago) ")
c = raw_input("Please choose days of rental car use: ")
d = raw_input("Please choose how much spending money you plan on spending: ")

a = nights
b = city
c = days


total = a + b + c + d

print "Your total cost of trip is %d" % total

Answer 1

我不确定这是否适用于Python版本2.但是，您可以尝试这样做：

a = int(raw_input("Please choose number of nights: ") * 140 ) 
# Multiplies by 140, but this would defeat the purpose of your functions.

并应用int函数将所有输入转换为整数。

Answer 2

您需要先将数字输入值转换为数字，然后将输入值传递给函数。

删除行

a = nights
b = city
c = days

使用

计算总数

total = hotel_cost(int(a)) + plane_cost(b) + rental_car_cost(int(c)) + float(d)

我认为，对于夜晚和租车日，只有整数才有意义。

Answer 3

您可以在Python 2中使用input()，因为它会将输入评估为正确的类型。对于这些函数，您只需将值传递给它们，如下所示：

def hotel_cost(nights):
    return nights * 140

def plane_cost(city):
    if city == "Atlanta":
        return 220
    elif city == "Boston":
        return 550
    elif city == "Chicago":
        return 900

def rental_car_cost(days):
    if days >= 7:
        return days * 100 - 50
    elif days >= 1 and days <= 5:
        return days * 100 - 20

nights = input("Please choose number of nights: ")
city = raw_input("Please choose which city you are flying to (Atlanta, Boston, Chicago) ")
rental_duration = input("Please choose days of rental car use: ")
spending_money = input("Please choose how much spending money you plan on spending: ")

total = hotel_cost(nights) + plane_cost(city) + rental_car_cost(rental_duration) + spending_money

print "Your total cost of trip is %d" % total

我如何将这些raw_input答案转换为我的函数？

3 个答案: