这是一个创建于 2301 天前的主题，其中的信息可能已经有所发展或是发生改变。
company={}
news_date="2018-02-23"
title="asdasdad"
company[news_date]=title
company
{'2018-02-23': 'asdasdad'}
company.setdefault(news_date,{}).setdefault("asdasasdasdasdqe121")
Traceback (most recent call last):
File "<input>", line 1, in <module>
AttributeError: 'str' object has no attribute 'setdefault'
company.setdefault(news_date,{"asdasd"})
'asdasdad'
company
{'2018-02-23': 'asdasdad'}
company.setdefault(news_date,{"asdasdasdada"})
'asdasdad'
如何改变 news_date 的 key 为字典类型
news_date="2018-02-23"
title="asdasdad"
company[news_date]=title
company
{'2018-02-23': 'asdasdad'}
company.setdefault(news_date,{}).setdefault("asdasasdasdasdqe121")
Traceback (most recent call last):
File "<input>", line 1, in <module>
AttributeError: 'str' object has no attribute 'setdefault'
company.setdefault(news_date,{"asdasd"})
'asdasdad'
company
{'2018-02-23': 'asdasdad'}
company.setdefault(news_date,{"asdasdasdada"})
'asdasdad'
如何改变 news_date 的 key 为字典类型
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1
hjq98765 2018-08-02 19:45:32 +08:00
可变类型不能作为字典的 key
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