# 创建字典cities_dict
cities_dict = {'Beijing':{'Capital': 'China'}, 'Moscow':{'Capital': 'Russia'}, 'Paris':{'Capital': 'France'}}

# 使用for循环遍历"已使用sorted()函数按升序进行临时排序的包含字典cities_dict的所有键的列表"
for city in sorted(cities_dict,reverse=False):
    print(f"{city} is the capital of {cities_dict.get(city).get('Capital')}!")