Python 循环语句答案

【问题标题】：Python loop statementsPython 循环语句
【发布时间】：2017-06-20 09:57:38
【问题描述】：

我一直在为我的家庭作业编写一个程序：为每周工作五天的汽车销售员编写程序。程序应该提示每天售出多少辆汽车，然后提示当天每辆汽车的售价（如果有的话）。输入所有五天的数据后，程序应报告该期间的汽车总销量和总销量。请参阅示例输出。注意：复制显示的总销售额的货币格式，

示例输出第一天卖出了多少辆车？ 1 汽车1的售价？ 30000 第 2 天卖出了多少辆车？ 2 汽车1的售价？ 35000 汽车2的售价？ 45000 第 3 天卖出了多少辆车？ 0 第 4 天卖出了多少辆车？ 1 汽车1的售价？ 30000 第 5 天卖出了多少辆车？ 0 您售出了 4 辆汽车，总销售额为 140,000.00 美元

我确实有一些我已经处理过的代码，但我被卡住了。我可以弄清楚如何让程序提示用户在第 2 天卖出了多少辆汽车，依此类推。任何帮助，将不胜感激！

这是我的代码，我也在学习基本的 Python 课程，所以我是新手！！

    def main () :

   cars_sold = []
   num_days = int(input('How many days do you have sales?'))

   for count in range(1, num_days + 1):
       cars = int(input('How many cars were sold on day?' + \
                        str(count) + ' '))

   while (cars != cars_sold):
    for count in range(1, cars + 1):
        cars_sold = int(input('Selling price of car' ' ' + \
                           str(count) + ' '))

主()

【问题讨论】：

标签： python-3.x loops for-loop while-loop

【解决方案1】：

为此，您需要使用嵌套的 for 循环来提示输入的每辆汽车。

def main():
    cars_sold = 0
    total = 0
    num_days = int(input('How many days do you have sales? '))

    # for each day
    for i in range(1, num_days + 1):
        num_cars = int(input('How many cars were sold on day {0}? '.format(i)))
        cars_sold += num_cars

        # for each car of each day
        for j in range(1, num_cars + 1):
            price = int(input('Selling price of car {0}? '.format(j)))
            total += price

    # Output number of cars and total sales with $ and comma format to 2 decimal places
    print('You sold {0} cars for total sales of ${1:,.2f}'.format(cars_sold, total))

# Output
>>> main()
How many days do you have sales? 5
How many cars were sold on day 1? 1
Selling price of car 1? 30000
How many cars were sold on day 2? 2
Selling price of car 1? 35000
Selling price of car 2? 45000
How many cars were sold on day 3? 0
How many cars were sold on day 4? 1
Selling price of car 1? 30000
How many cars were sold on day 5? 0
You sold 4 cars for total sales of $140,000.00

【讨论】：