ex39

states = {
    'fujian' : 'FJ',
    'zhejiang' : 'ZJ',
    'jiangsu' :'JS',
    'guangdong' : 'GD',
    'hunan' : 'HN'
    }
   
cities = {
    'FJ' : '福州',
    'ZJ' : '杭州',
    'JS' : '南京',
    'GD' : '广州'
    }
    
cities['HN'] = '长沙'

print("=" * 10)
print('福建省的省会是：', cities['FJ'])
print('江苏省的省会是：', cities['JS'])

print('=' * 10)
print('广东省的首字母大写是：', states['guangdong'])
print('浙江省的首字母大写是：', states['zhejiang'])

print("=" * 10)
print("湖南省的省会是：", cities[states['hunan']])

print("=" * 10)
for state, abbrev in list(states.items()):
    print(f"{state}的拼音缩写是{abbrev}")
    
print('=' * 10)
for abbrev, city in list(cities.items()):
    print(f"{abbrev}的省会是{city}")
    
print('=' * 10)
for state,abbrev in list(states.items()):
    print(f"{state}的拼音缩写是{abbrev}")
    print(f"省会是{cities[abbrev]}")
    
print('=' * 10)
state = states.get('beijing')

if not state:
    print('没有这个城市')
    
city = cities.get('BJ','beijing')
print(f"缩写为'BJ'的就是: {city}")