Question

在python中编程相对较新，感谢您在我上一个问题上提供的所有快速帮助，我在另一个python项目上。无论如何，我为python项目编写了一个新程序，为餐饮场所制作账单。这是我的下面的代码，一切运行正常，我得到了项目所需的预期结果，我遇到的两个问题是，1。我需要沙漠的成本不打印---＆gt; 3.0但是---＆gt; $ 3.00，基本上，我如何打印美元符号，以及e.x 3.0 - ＆gt; 3.00或45.0 - ＆gt; 45.00 ..和价格之前的美元符号。对不起，如果有人要求这样的话......

import math

#  constants

Cost_Per_Desert = 3.00
Tax_Rate = .075
Gratuity_Tips = .15
Adult_Meal_Cost = 12.75
Child_Meal_Cost = .60*12.75
Room_Fee = 450.00
Less_Deposit = 250.00


   def main():

   #         Input Section


    Name = input("\n\n Customer:\t\t\t ")
    Number_Of_Adults = int(input(" Number of Adults:\t\t "))
    Number_Of_Children = int(input(" Number of Children:\t\t "))
    Number_Of_Deserts = int(input(" Number of Deserts:\t\t "))



   print("\n\nCost Of Meal Per Adult:\t\t" , Adult_Meal_Cost)
   print("Cost of Meal Per Child:\t\t" , round(Child_Meal_Cost,2))
   print("Cost Per Desert:\t\t" , round(Cost_Per_Desert,2))


   #        Processing/Calculations

    Total_Adult_Meal_Cost = Adult_Meal_Cost* Number_Of_Adults

    Total_Child_Meal_Cost = Child_Meal_Cost* Number_Of_Children

   Total_Desert_Cost = Cost_Per_Desert* Number_Of_Deserts

   Total_Food_Cost = Total_Adult_Meal_Cost + Total_Child_Meal_Cost       +         Total_Desert_Cost

Total_Taxes = Total_Food_Cost * Tax_Rate

Tips = Total_Food_Cost * Gratuity_Tips    

Total_Bill = Total_Food_Cost + Total_Taxes + Tips + Room_Fee


#       Output Section

print("\n\n Total Cost for Adult Meals: \t", Total_Adult_Meal_Cost)

print(" Total Cost for Childs Meals: \t", Total_Child_Meal_Cost)

print(" Total Cost for Desert: \t", Total_Desert_Cost)

print(" Total Food Cost: \t\t", Total_Food_Cost)

print("\n\n Plus 7.5% Taxes: \t\t", round(Total_Taxes,2))

print(" Plus 15.0% Tips: \t\t", round(Tips,2))

print(" Plus Room Fee: \t\t", Room_Fee)


print("\n\n Total Bill: \t\t\t", round(Total_Bill,2))

print(" Less Deposit: \t\t\t", Less_Deposit)

print("\n\nBalance Due: \t\t\t", round(Total_Bill - Less_Deposit,2))

print("\n\n\n\n\t\t Thank You For Using Passaic County Catering Services. ")


main()
input("\n\n\n\n\nPress Enter to Continue")

Answer 1

让我们说沙漠的成本是3.00美元

cost = 3
print("${0:.2f}".format(cost))

输出：

$3.00

Answer 2

当您需要添加$符号时，只需在字符串中添加$符号即可。
如果您想修复十进制数字位置，您只需要基本的字符串格式，例如： print('pi is %.2f' % 3.14159) 输出将是pi is 3.14

您可能想阅读：https://docs.python.org/2.7/library/string.html#formatspec

在python中打印出适当的账单生成程序

2 个答案: