在python中将字典创建到另一个字典的语法 [英] syntax for creating a dictionary into another dictionary in python

问题描述

可能的重复:
在python中将一个列表插入另一个列表的语法

如何在python中将字典创建到另一个字典的语法

How could be the syntax for creating a dictionary into another dictionary in python

推荐答案

您可以通过嵌套 {} 容器在字典中声明字典:

You can declare a dictionary inside a dictionary by nesting the {} containers:

d = {'dict1': {'foo': 1, 'bar': 2}, 'dict2': {'baz': 3, 'quux': 4}}

然后您可以使用 [] 语法访问元素:

And then you can access the elements using the [] syntax:

print d['dict1']           # {'foo': 1, 'bar': 2}
print d['dict1']['foo']    # 1
print d['dict2']['quux']   # 4

鉴于上述情况，如果您想在字典中添加另一个字典，可以这样做:

Given the above, if you want to add another dictionary to the dictionary, it can be done like so:

d['dict3'] = {'spam': 5, 'ham': 6}

或者如果您更喜欢将项目一一添加到内部字典中:

or if you prefer to add items to the internal dictionary one by one:

d['dict4'] = {}
d['dict4']['king'] = 7
d['dict4']['queen'] = 8

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