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] +'!')