外包 | A Menu-Driven Proram
1. Question
Write a menu-driven program for De Anza College Food Court. (You need to use functions!)
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Display the food menu to a user (Just show the 5 options’ names and prices - No need to show the Combos or the details!)
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Ask the user what he/she wants and how many of it. (Check the user inputs) AND use strip() function to strip your inputs(if needed)
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Keep asking the user until he/she chooses the exit option.
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Calculate the price.
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Ask the user whether he/she is a student or a staff. There is no tax for students and a 9% tax for staff. Add the tax price to the total price.
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Display the bill to the user. The bill includes:
- The food items
- The quantities
- The cost of them
- The total before tax
- Tax amount
- Total price after tax
?
2. Code
- Burger Menu
burger_Menu = [ (5.25, 'De Anza Burger'), (5.75, 'Bacon Cheese'), (5.95, 'Mushroom Swiss'), (5.95, 'Western Burger'), (5.95, 'Don Cali Burger') ] - show_menu()
def show_menu(): print('*' * 59) print('*%10s%s%10s*' % ('', 'Welcome to De Anza College Food Court', '')) print('*' * 59) print('%10s%+10s%+20s' % ('', 'Price', 'Item')) for i in range(len(burger_Menu)): print('%10s%d%+9s%+20s' % ('', i+1, '$'+str(burger_Menu[i][0]), burger_Menu[i][1])) print()
- get_input()
def get_input(): food_Items = [0 for _ in range(len(burger_Menu))] while 1: input_Option = input('(6 for exit)Input your Option: ').strip() if input_Option not in '123456': print('*Excuse Me*: Please Input Option from 1 to 6') continue else: input_Option = int(input_Option) if input_Option == 6: print("Thank you, hope to see you again!\n") break else: input_Num = input('How many you want: ').strip() if input_Num.isdigit(): food_Items[input_Option-1] += int(input_Num) else: print('*Excuse Me*: Please enter an integer') continue return food_Items
- compute_bill()
def compute_bill(food_Items): food_bill = [0 for _ in range(len(burger_Menu))] for i in range(len(food_Items)): food_bill[i] = burger_Menu[i][0] * food_Items[i] total_noTax = sum(food_bill) is_Student = input('Are you a student?(y/n): ').strip().lower() if is_Student == 'y' or is_Student == 'yes': tax = 0 else: tax = total_noTax * 0.09 total_withTax = total_noTax + tax return food_bill, total_noTax, tax, total_withTax - print_bill()
def print_bill(food_Items, food_bill, total_noTax, tax, total_withTax): print('\n*%20sHere is your bill%20s*' % ('', '')) print('%7s%-20s%-16s%-9s%10s' % ('', 'Item', 'Quantities', 'Cost', '')) for i in range(len(food_Items)): if food_Items[i] != 0: print('%7s%-20s%-16s%-9s%10s' % ('', burger_Menu[i][1], food_Items[i], '$'+str(food_bill[i]), '')) else: continue print() print('The total before tax: $%.2f' % total_noTax) print('Tax amount: $%.2f' % tax) print('Total price after tax: $%.2f' % total_withTax)
- main()
def main(): show_menu() food_Items = get_input() if sum(food_Items) != 0: food_bill, total_noTax, tax, total_withTax = compute_bill(food_Items) print_bill(food_Items, food_bill, total_noTax, tax, total_withTax)
3. Sample Run 1
***********************************************************
* Welcome to De Anza College Food Court *
***********************************************************
Price Item
1 $5.25 De Anza Burger
2 $5.75 Bacon Cheese
3 $5.95 Mushroom Swiss
4 $5.95 Western Burger
5 $5.95 Don Cali Burger
(6 for exit)Input your Option: 1
How many you want: 2
(6 for exit)Input your Option: 5
How many you want: 2
(6 for exit)Input your Option: 6
Thank you, hope to see you again!
Are you a student?(y/n): n
* Here is your bill *
Item Quantities Cost
De Anza Burger 2 $10.5
Don Cali Burger 2 $11.9
The total before tax: $22.40
Tax amount: $2.02
Total price after tax: $24.42
Process finished with exit code 0
?
4. Sample Run 2
***********************************************************
* Welcome to De Anza College Food Court *
***********************************************************
Price Item
1 $5.25 De Anza Burger
2 $5.75 Bacon Cheese
3 $5.95 Mushroom Swiss
4 $5.95 Western Burger
5 $5.95 Don Cali Burger
(6 for exit)Input your Option: abc
*Excuse Me*: Please Input Option from 1 to 6
(6 for exit)Input your Option: 9
*Excuse Me*: Please Input Option from 1 to 6
(6 for exit)Input your Option: 1
How many you want: 1.25
*Excuse Me*: Please enter an integer
(6 for exit)Input your Option: 1
How many you want: abc
*Excuse Me*: Please enter an integer
(6 for exit)Input your Option: 6
Thank you, hope to see you again!
Process finished with exit code 0
