Python 字典的创建赋值和动态扩展

>>> cleese={}

>>> palin=dict()

>>> type(cleese)

<class 'dict'>

>>> type(palin)

<class 'dict'>

>>> cleese['Name']='John Cleese'

>>> cleese['Occupations']=['actor','comedian','writer','film producer']

>>> palin={'name':'Michael Palin','Occupations':['comedian','actor','writer','tv']}

>>> palin['name']

'Michael Palin'

>>> cleese['Occupations'][-1]

'film producer'

>>> palin['Brithplace']="England"

>>> cleese['Birthplace']="US"

>>> palin

{'Occupations': ['comedian', 'actor', 'writer', 'tv'], 'name': 'Michael Palin', 'Brithplace': 'England'}

>>> cleese

{'Name': 'John Cleese', 'Occupations': ['actor', 'comedian', 'writer', 'film producer'], 'Birthplace': 'US'}

>>>