python实战练习2

 

 

 

 

cities_dict ={'Beijing':'China',  'Paris':'France', 'Moscow':'Russia'}

print('原始列表的key顺序：',cities_dict)

print("不对键排序时输出的city顺序：")
for city in cities_dict.keys():
    print(city + ' is the capital of ' + cities_dict[city] +'!')


print("\n对键排序时输出的city顺序：")
for city in sorted(cities_dict.keys()):
    print(city + ' is the capital of ' + cities_dict[city] +'!')