python 解碼json數據並在一個OrderdDict中保留其順序

一般來講，JSON 解碼會根據提供的數據創建dicts 或lists。如果你想要創建其他類型的對象，可以給json.loads() 傳遞object_pairs_hook 或object_hook 參數

>>> s='{"name":"apple","shares":50,"prices":490.11}'
>>> s
'{"name":"apple","shares":50,"prices":490.11}'
>>> from collections import OrderedDict
>>> import json
>>> data=json.loads(s,object_pairs_hook=OrderedDict)
>>> data
OrderedDict([('name', 'apple'), ('shares', 50), ('prices', 490.11)])
>>>