使用Python将美分转换为宿舍，镍币，硬币和便士

Question

我正在使用Python，并且我试图将美分的一定数量的钱转换为宿舍，镍，硬币和便士中的等价物。

这是我到目前为止，但我看到的问题是，我不知道如何从宿舍拿走余下的钱，并将其分解为硬币，镍和便士。我对此很陌生，只是很难过。我并不是要求某人解决问题，只是指出我做错了什么（也许我需要做些什么才能解决问题）。

# Convert some money to an appropriate collection of cents 
penny = 1 
nickel = 5 
dime = 10 
quarter = 25 

quarters = 0 
dimes = 0 
nickels = 0 
pennys = 0 

cents = int(input("Please enter an amount of money you have in cents: ")) 

if cents >= 25: 
    quarters = cents/quarter 
    cents % quarter 
if cents >= 10: 
    dimes = cents/dime 
    cents % dime 
if cents >= 5: 
    nickels = cents /nickel 
    cents % nickel 
if cents > 0: 
    pennys = cents/penny 
    cents = 0 

print ("The coins are: quarters", quarters,\ 
",dimes", dimes, ",nickels", nickels, ", and pennys.", pennys) 

Answer 1

使用divmod，它只是三行：

quarters, cents = divmod(cents, 25) 
dimes, cents = divmod(cents, 10) 
nickels, pennies = divmod(cents, 5) 

Answer 2

还有，你在这里需要两个操作：整数除法和模。

整数除法A/B问一个简单的问题：有多少次会B嵌入A干净（无需打破B成十进制件）？ 2干净地适合84次。 2干净地适合94次。

模A % B问同样的问题，但给出的答案的翻盖侧：鉴于A进入B干净一些的次数，什么遗留？ 2毫无遗漏地进入84次，所以2 % 8是0。 2干净地进入94次，但1被遗忘，因此2 % 9是1。

我给你举另一个例子，让你从这个过渡到你的问题。比方说，我给了一些秒，我需要将其转换为天，小时，分钟和秒。

total_seconds = 345169 

# Specify conversion between seconds and minutes, hours and days 
seconds_per_minute = 60 
seconds_per_hour = 3600 # (60 * 60) 
seconds_per_day = 86400 # (3600 * 24) 

# First, we pull out the day-sized chunks of seconds from the total 
# number of seconds 
days = total_seconds/seconds_per_day 
# days = total_seconds // seconds_per_day # Python3 

# Then we use the modulo (or remainder) operation to get the number of 
# seconds left over after removing the day-sized chunks 
seconds_left_over = total_seconds % seconds_per_day 

# Next we pull out the hour-sized chunks of seconds from the number of 
# seconds left over from removing the day-sized chunks 
hours = seconds_left_over/seconds_per_hour 
# hours = seconds // seconds_per_hour # Python3 

# Use modulo to find out how many seconds are left after pulling out 
# hours 
seconds_left_over = seconds_left_over % seconds_per_hour 

# Pull out the minute-sized chunks 
minutes = seconds_left_over/seconds_per_minute 
# minutes = seconds_left_over // seconds_per_minute # Python3 

# Find out how many seconds are left 
seconds_left_over = seconds_left_over % seconds_per_minute 

# Because we've removed all the days, hours and minutes, all we have 
# left over are seconds 
seconds = seconds_left_over