dict中的“深拷贝”和“浅拷贝”

>>> from copy import deepcopy
>>> d = {}
>>> d['name'] = ['wang','zhang']
>>> d
{'name': ['wang', 'zhang']}
>>> c = d.copy()
>>> dc = deepcopy(d)
>>> id(d),id(c),id(dc)
(139877719597136, 139877719598816, 139877719599936)
>>> b = d
>>> id(d),id(c),id(dc),id(b)
(139877719597136, 139877719598816, 139877719599936, 139877719597136)
>>> d('name1').append('chen')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: 'dict' object is not callable
>>> d('name').append('chen')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: 'dict' object is not callable
>>> d['name1'].append('chen')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
KeyError: 'name1'
>>> d['name'].append('chen')
>>> d
{'name': ['wang', 'zhang', 'chen']}
>>> c
{'name': ['wang', 'zhang', 'chen']}
>>> dc
{'name': ['wang', 'zhang']}
>>> b
{'name': ['wang', 'zhang', 'chen']}
>>> id(d),id(c),id(dc),id(b)
(139877719597136, 139877719598816, 139877719599936, 139877719597136)
>>>