Question

我无法弄清楚为什么这段代码不会计入20个。我需要创建一个可以计算20张票的代码，但如果购买10张或更多票，则会给出10％的折扣。这是我到目前为止的代码

start = 1
end = 21
increment = 1
TicketPrice = float(input("Enter the price of one ticket: "))

while TicketPrice <= 0:
    print("The price of one ticket must be greater than zero.   Try again!")
    TicketPrice = float(input("Enter the price of one ticket: "))

def main():

    print('Tickets\t      Total Price')

    for Tickets in range (start, end, increment):
        Total = TicketPrice * Tickets
        while Tickets >= 10:
            Total = 0.90 * Tickets * TicketPrice


        print(Tickets, '\t     ', Total)

main()

编辑：我将while循环更改为if并且解决了问题，但我现在需要将代码限制为2个小数点而不向上或向下舍入

Answer 1

for Tickets in range (start, end, increment):
    Total = TicketPrice * Tickets
    if Tickets >= 10:
        Total *= 0.90

正如您最初编写的那样，Tickets为10时的迭代，同时循环播放并重新计算10％的折扣。

Answer 2

def get_ticket_price():
    price = float(input('Enter the price of one ticket: '))
    if price <= 0:
        print('The price of one ticket must be greater than zero. Try again!')
        return get_ticket_price()
    return price

ticket_price = get_ticket_price()

total = 0
for ticket_count in range (1, 21):
    price = ticket_price
    if ticket_count >= 10:
        price = ticket_price - (ticket_price * .1)
    total = total + price

print(total)

机票价格计算器代码无效

2 个答案: