python编程从入门到实践（第二版）第六章习题答案6.7-6.11

6.7

friend_0 = {'first_name':'hao','last_name':'zeng yao','age':22,'city':'He zhe'}
friend_1 = {'first_name':'zhang','last_name':'yu','age':22,'city':'Ji nan'}
friend_2 = {'first_name':'yuan','last_name':'hao','age':21,'city':'Ji nan'}

friends = [friend_0,friend_1,friend_2]
for friend in friends:
    print(friend)

6.8

pet_0 = {'type': 'dog','The host name': 'Tom'}
pet_1 = {'type': 'cat','The host name': 'john'}
pet_2 = {'type': 'pig','The host name': 'A'}

pets = [pet_0, pet_1, pet_2]
for pet in pets:
    print(pet)

 6.9

favorite_places = {
    'alice': ['Hang zhou','Bei jing','Qing dao'],
    'david': ['Mac