Question

我正在尝试让Python将简单的Tip Calculator程序的输出四舍五入到两位小数，但到目前为止我还没有意识到这一点。以下是相关的代码部分。我希望输出以常规美元和美分格式打印（例如，$ XX.XX）

bill = float(input("\n\nWhat is the bill for your meal?: $"))

low_tip = bill * .15
print("\nIf you would like to tip the waiter 15%, the amount of the \ntip is: $", low_tip)

low_total = bill + low_tip
print("\nSo, your total bill including a 15% tip would be: $", low_total)

high_tip = bill * .20
print("\nIf you would like to tip the waiter 20%, the amount of the \ntip is: $", high_tip)

high_total = bill + high_tip
print("\nSo, your total bill including a 20% tip would be: $", high_total)

Answer 1

您可以在打印前将浮动格式化为字符串：

>>> '${0:.2f}'.format(15.5)
'$15.50'

或使用%运算符：

>>>'$%.2f' % 15.5
'$15.50'

整个print看起来像是：

print("\nSo, your total bill including a 20% tip would be: ${0:.2f}".format(high_total))

如何在输出中设置两个小数位

1 个答案: