python 字典

 

字典的键值可以是任意对象，如字符串，数字和元组，另外字典可以是一列用逗号分开的值

 

>>> d = {}

>>> d[1,2,3] = 100

>>> d[1,2,3]

100

>>> d[(1,2,3)] = 200

>>> d

{(1, 2, 3): 200}

>>> d[(1,2,1)] = 400

>>> d

{(1, 2, 1): 400, (1, 2, 3): 200}