python自动售货机_自动售货机程序（计算必须插入的数量等）

我想写一个程序来模拟自动售货机，并根据支付的金额计算出零钱(必须退还给你)。考虑到成本，首先应该提示用户添加更多的钱，直到支付满足/超过成本。在

假设所有的零钱都是用硬币换的，硬币的面额是：1c，5c，10c，25c，$1

这是我的计划：x = eval(input("Enter the cost (in cents):\n"))

b = 0

for i in range(x+500):

if x<5 and x>=b:

b += 1

print("Deposit a coin or note (in cents):")

print(1)

diff = b-x

for i in range(diff):

onecents = diff//1

new_onecents = diff - (onecents*1)

print("Your change is:")

if onecents != 0:

print(onecents,"x 1c")

break

elif x<10 and x>=b:

b += 5

print("Deposit a coin or note (in cents):")

print(5)

diff = b-x

for i in range(diff):

fivecents = diff//5

ne