>>> dict.fromkeys(['a','b','c'],[1,2,3])


{'a': [1, 2, 3], 'b': [1, 2, 3], 'c': [1, 2, 3]}

>>> dict.fromkeys(['a','b','c'],[1,2,3])


{'a': [1, 2, 3], 'b': [1, 2, 3], 'c': [1, 2, 3]}

d = dict()

or

d = {}

or

import types
d = types.DictType.__new__(types.DictType, (), {})

不带参数调用dict

new_dict = dict()

或者简单地写

new_dict = {}

>>> dict(a=2,b=4)
{'a': 2, 'b': 4}

将在python字典中添加该值。

你可以这样做

x = {}
x['a'] = 1