Question

我在python中编写了以下代码，用于模拟ATM：

withd = int(input("How much do you want to withdraw? "))

# Withdrawal shown to customer
print("Withdrawal: ", withd, " CHF")

# 100 bills
a = withd // 100
a_rest = withd % 100

# 50 bills
b = a_rest // 50
b_rest = a_rest % 50

# 20 bills
c = b_rest // 20
c_rest = b_rest % 20

# 10 bills
d = c_rest // 10

print("100", a)
print("50", b)
print("20", c)
print("10", d)

如果我在开头输入50，我会得到以下输出：

How much do you want to withdraw? 50
Withdrawal:  50  CHF
100 0
50 1
20 0
10 0

我想更改显示，以便在输出中只显示正在使用的帐单，在这种情况下只会是50帐单。不应打印所有未使用的帐单。有没有办法改变那个方向的输出？

Answer 1

解决方案显然是要检查if a>0:，if b>0:等等。但是如何投入循环，所以你不必硬编码所有账单的条件？

withd = int(input("How much do you want to withdraw? "))

# Withdrawal shown to customer
print("Withdrawal: ", withd, " CHF")

bills = [100, 50, 20, 10]
res = {}

rest = withd

for bill in bills:
    res[bill] = rest // bill
    rest = rest % bill

    if res[bill] > 0:
        print(bill, res[bill])

在此示例中，如果您还需要进行进一步计算，还可以将字典数存储在字典中

如何在python的某些情况下抑制打印？

1 个答案: