快餐点餐

 1 Food_list = {
 2     ‘pizza‘: [‘cheese‘, ‘onion‘, ‘green_papper‘, ‘mushroom‘],
 3     ‘hamburger‘: [‘beef‘, ‘pork‘, ‘chicken‘, ‘lettuce‘, ‘tomato‘, ‘cheese‘, ‘onion‘, ‘cucumber‘],
 4     ‘pasta‘: [‘fish‘, ‘beef‘, ‘onion‘, ‘basil‘, ‘meatball‘, ‘black_papper‘],
 5     ‘fried_chicken‘: [‘leg‘, ‘wings‘, ‘breast‘, ‘chili‘, ‘papper‘],
 6     ‘ice_cream‘: [‘vanilla‘, ‘Chocolate‘, ‘strawbarry‘, ‘banana‘],
 7     ‘french_fries‘: [‘small_portion‘, ‘medium‘, ‘large_portion‘],
 8     ‘cake‘: [‘cream‘, ‘chocolate‘, ‘mango‘, ‘toon‘],
 9     ‘drinks‘: [‘cola‘, ‘sprite‘, ‘coffee‘, ‘milkshake‘]
10     }
11 # print menu
12 for key in Food_list.keys():
13     print(key.title())
14 choice = input(‘Please choose you favorite food:\n‘)
15 
16 Food_select = {
17     ‘pizza‘: [],
18     ‘hamburger‘: [],
19     ‘pasta‘: [],
20     ‘fried_chicken‘: [],
21     ‘ice_cream‘: [],
22     ‘french_fries‘: [],
23     ‘cake‘: [],
24     ‘drinks‘: []
25     }
26 Drop_out = True
27 # Enter a list according to the user
28 while Drop_out:
29     if choice.isalpha():
30         if choice == ‘q‘:
31             for key in list(Food_select.keys()):
32                 if not Food_select.get(key):
33                     del Food_select[key]
34             print(Food_select)
35             Drop_out = False
36             break
37         elif choice == ‘b‘:
38             print(‘You have returned to the top‘)
39         else:
40             # choice = choice.title()
41             print(Food_list[choice])
42             choice2 = input(
43                 ‘Please choose the ingredients you like:\nDrop out:q\nReturn to superior:b\n‘)
44             if choice2.isalpha():
45                 if choice2 == "q":
46                     for key in list(Food_select.keys()):
47                         if not Food_select.get(key):
48                             del Food_select[key]
49                     print(Food_select)
50                     Drop_out = False
51                     break
52                 elif choice2 == "b":
53                     for key in Food_list.keys():
54                         print(key)
55                     choice = input(‘Please choose you favorite food:\n‘)
56                 else:
57                     while choice2 in Food_list[choice]:
58                         Food_select[choice].append(choice2)
59                         print(Food_select[choice])
60                                                 
61                         if choice2 not in Food_list[choice]:
62                             print(‘Please select according to the ingredient list!‘)
63                         break
64             else:
65                 print(‘Please follow the menu order!‘)
66 
67     else:
68         print(‘Please follow the menu order!‘)