字符串到字典

Question

我正在尝试将字符串转换为字典.例:

Milk, Cheese, Bottle

该程序将其转换为字典.

{"Milk":"NULL", "Cheese":"NULL", "Bottle":"NULL"}

我该怎么做？

Answer 1

>>> string = 'Milk, Cheese, Bottle'
>>> dict((key, None) for key in string.split(', '))
{'Cheese': None, 'Milk': None, 'Bottle': None}

Answer 2

>>> s = "Milk, Cheese, Bottle"
>>> d = dict.fromkeys(s.split(', '),"NULL")
>>> d
{'Cheese': 'NULL', 'Milk': 'NULL', 'Bottle': 'NULL'}