完成第八章函数的课后练习

Author: OctopusLian

chapter08/8-10.py

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+def show_magicians(names):
+    for name in names:
+        print(name)
+
+def make_great(names):
+    great_magicians = []
+    while names:
+        magician = names.pop()
+        great_magician = magician + ' the Great'
+        great_magicians.append(great_magician)
+    
+    for great_magician in great_magicians:
+        names.append(great_magician)
+
+
+magicians = ['znn','david','amy']
+show_magicians(magicians)
+
+print("\n")
+make_great(magicians)
+show_magicians(magicians)

chapter08/8-11.py

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+def show_magicians(names):
+    for name in names:
+        print(name)
+
+def make_great(names):
+    great_magicians = []
+    while names:
+        magician = names.pop()
+        great_magician = magician + ' the Great'
+        great_magicians.append(great_magician)
+    
+    for great_magician in great_magicians:
+        names.append(great_magician)
+    
+    return names
+
+
+magicians = ['znn','david','amy']
+show_magicians(magicians)
+
+print("\nGreat magicians:")
+great_magicians = make_great(magicians[:])
+show_magicians(great_magicians)
+
+print("\nOriginal magicians:")
+show_magicians(magicians)

chapter08/8-12.py

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+# encoding: utf-8
+
+# 切记*items这不是指针，是创建一个名为items的空元组，并将收到的所有值都封装到这个元组中
+def make_sandwich(*items):
+    for item in items:
+        print("...adding " + item)
+
+make_sandwich('roast beef', 'cheddar cheese', 'lettuce', 'honey dijon')
+make_sandwich('turkey', 'apple slices', 'honey mustard')
+make_sandwich('peanut butter', 'strawberry jam')

chapter08/8-13.py

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+def build_profile(first, last, **user_info):
+    profile = {}
+    profile['first_name'] = first
+    profile['last_name'] = last
+    for key, value in user_info.items():
+        profile[key] = value
+    return profile
+
+user_profile = build_profile('albert', 'einstein',
+                             location='princeton',
+                             field='physics')
+print(user_profile)

chapter08/8-14.py

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+def make_car(manufacturer, model, **options):
+    car_dict = {
+        'manufacturer': manufacturer.title(),
+        'model': model.title(),
+        }
+    for option, value in options.items():
+        car_dict[option] = value
+
+    return car_dict
+
+my_outback = make_car('subaru', 'outback', color='blue', tow_package=True)
+print(my_outback)
+
+my_accord = make_car('honda', 'accord', year=1991, color='white',
+        headlights='popup')
+print(my_accord)

chapter08/8-6.py

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+def city_country(city,country):
+    return (city.title() + ',' + country.title())
+
+city = city_country('shanghai', 'china')
+print(city)
+
+city = city_country('ushuaia', 'argentina')
+print(city)
+
+city = city_country('longyearbyen', 'svalbard')
+print(city)

chapter08/8-7.py

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+def make_album(artist, title):
+    album_dict = {
+        'artist': artist.title(),
+        'title': title.title(),
+    }
+    return album_dict
+
+album = make_album('metallica', 'ride the lightning')
+print(album)
+
+album = make_album('beethoven', 'ninth symphony')
+print(album)
+
+album = make_album('willie nelson', 'red-headed stranger')
+print(album)

chapter08/8-8.py

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+def make_album(artist, title, tracks=0):
+    """Build a dictionary containing information about an album."""
+    album_dict = {
+        'artist': artist.title(),
+        'title': title.title(),
+        }
+    if tracks:
+        album_dict['tracks'] = tracks
+    return album_dict
+
+title_prompt = "\nWhat album are you thinking of? "
+artist_prompt = "Who's the artist? "
+
+print("Enter 'quit' at any time to stop.")
+
+while True:
+    title = raw_input(title_prompt)
+    if title == 'quit':
+        break
+    
+    artist = raw_input(artist_prompt)
+    if artist == 'quit':
+        break
+
+    album = make_album(artist, title)
+    print(album)
+
+print("\nThanks for responding!")

chapter08/8-9.py

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+def show_magicians(names):
+    for name in names:
+        print(name)
+
+magicians = ['znn','david','amy']
+show_magicians(magicians)

chapter08/print_models.py

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+import printing_functions
+
+unprinted_designs = ['iphone case', 'robot pendant', 'dodecahedron']
+completed_models = []
+
+print_models(unprinted_designs, completed_models)
+show_completed_models(completed_models)

chapter08/printing_functions.py

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+def print_models(unprinted_designs, completed_models):
+    """
+    Simulate printing each design, until there are none left.
+    Move each design to completed_models after printing.
+    """
+    while unprinted_designs:
+        current_design = unprinted_designs.pop()
+    
+        # Simulate creating a 3d print from the design.
+        print("Printing model: " + current_design)
+        completed_models.append(current_design)
+        
+def show_completed_models(completed_models):
+    """Show all the models that were printed."""
+    print("\nThe following models have been printed:")
+    for completed_model in completed_models:
+        print(completed_model)
+        
+