How to change dict into list in python

How to change dict (dictionary) into list (list) in python?

Note: List cannot be converted into dictionary

①The converted list is an unordered list

a = {'a' : 1, 'b': 2, 'c' : 3}

#字典中的key转换为列表
key_value = list(a.keys())
print('字典中的key转换为列表：', key_value)

#字典中的value转换为列表
value_list = list(a.values())
print('字典中的value转换为列表：', value_list)

Running result:

字典中的key转换为列表：['a','b','c']
字典中的value转换为列表：[1,2,3]

②The converted list is an ordered list

import collections
z = collections.OrderedDict()
z['b'] = 2
z['a'] = 1
z['c'] = 3
z['r'] = 5
z['j'] = 4

#字典中的key转换为列表
key_value = list(z.keys())
print('字典中的key转换为列表：', key_value)

#字典中的value转换为列表
value_list = list(z.values())
print('字典中的value转换为列表：', value_list)

Running results:

字典中的key转换为列表：['b','a','c','p','j']
字典中的value转换为列表：[2,1,3,5,4]

Note: The Python version used here is 3.x.

Related recommendations: "Python Tutorial"

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