技術標籤：python

cities = {'beijing': {'country': 'china', 'population': '13', 'fact': 'beautiful'},
          'new york': {'country': 'usa', 'population': '3.3', 'fact': 'best'},
          'Japan': {'country': 'Tokyo', 'population': '2.3', 'fact': 'fast'},
          }
for city, info in cities.items():
    print("\n"+city+"\n介紹:")
    for key,value in info.items():
        print(key + ":" + value)