6-1 6-4
myfriend = {'first_name': 'niok', 'last_name': 'yhg', 'age': 18, 'city':'xian'} print(myfriend) print('\n') for key, value in myfriend.items(): print(key + ":") print(value) print('\n')
6-6
names = ['csd', 'fdae', 'saw', 'vcbdfr', 'oiuy'] dic = {'csd': 'python', 'saw': 'C', 'oiuy': 'C++'} for name in names: if name in dic.keys(): print(name.title() + ", Thanks for attending us!") else: print(name.title() + ", We hope you can join us!")
6-8
pets = {'sijia': {'species': 'dog', 'owner': 'anxuefeng'}, 'siling': {'species': 'dog', 'owner': 'wangbaicai'}, 'nemo': {'species': 'cat', 'owner': 'dalian'}, 'saner': {'species': 'cat', 'owner': 'daodao'},} for key, value in pets.items(): print(key + " is a " + value['species'] + ".") print("He's owner is " + value['owner'] + ".") print("\n")