尽管小数格式正确，但我的计算现在似乎显示不正确。
import time # It was reccommend in our text to always have your import data located outside of any loops, thus I put mine here.
while True: # This is the main, and only; while loop. It will repeat the program and allow users to book more reservations depending on input.
user_people = int(raw_input("Welcome to Ramirez Airlines! How many people will be flying?"))
user_seating = str(raw_input("Perfect! Now what type of seating would your party prefer? We offer Economy, Business and First Class!"))
else:
before_discount = luggage_total + seats_total
discount_amount = before_discount * discount_rate
after_discount = before_discount - discount_amount
print ('Unfortunately we were not able to discount this particular transaction, however you can learn how to save 10% on future flights through our Frequent Flyers program! Contact us for more info!')
print ('The total tax amount for your order is: $%.2f') % (before_discount * tax_rate)
print ('Your total amount due including taxes for your airfare is: $%.2f') % (before_discount * tax_rate + before_discount)
user_continue = raw_input("Your reservation was submitted successfully. Would you like to do another?")
if user_continue != 'yes':
break
print('Thank you for flying with Ramirez Airlines!') 请您参考如下方法:
print 'Your total amount due is ${:.2f}'.format(totalCost)
和:
print 'Your total amount due is $%.2f' % totalCost
都打印到小数点后两位。
In [3]: 'Your total amount due is $%.2f' % 1.2234
Out[3]: 'Your total amount due is $1.22'
In [4]: 'Your total amount due is ${:.2f}'.format(1.2234)
Out[4]: 'Your total amount due is $1.22'
如果您要添加两个数字，您需要使用旧样式格式的括号:
In [6]: 'Your total amount due is $%.2f' % (1.2234 + 1.2324)
Out[6]: 'Your total amount due is $2.46'
In [7]: 'Your total amount due is ${:.2f}'.format(1.2234+ 1.2324)
Out[8]: 'Your total amount due is $2.46'
使用您的代码中的示例:
print ('Your total amount due including taxes for your airfare is: ${:.2f}'.format(tax_amount + after_tax )
