如何让字典保持有序

在Python 内置的字典中默认是的字典是无序的,那么怎么能够按照顺序打印呢?

In [1]: d = {}

In [2]: d['jim'] = (1,33)

In [4]: d['dd'] = (2,63)

In [5]: d
Out[5]: {'dd': (2, 63), 'jim': (1, 33)}

In [6]:

In [1]: d = {}

In [2]: d['jim'] = (1,33)

In [4]: d['dd'] = (2,63)

In [5]: d

Out[5]: {'dd': (2, 63), 'jim': (1, 33)}

In [6]:

当然我们可以使用模块了

Python内置的模块 collections.odereddict

In [6]: from <span class='wp_keywordlink_affiliate'><a href="https://www.168seo.cn/tag/collections" title="View all posts in collections" target="_blank">collections</a></span> import OrderedDict

In [7]: dd = OrderedDict()

In [8]: dd['jim'] = (1,33)

In [9]: dd['ji'] = (2,36)

In [10]: dd['jii'] = (3,38)
In [15]: dd
Out[15]: OrderedDict([('jim', (1, 33)), ('ji', (2, 36)), ('jii', (3, 38))])

In [16]: isinstance(dd,dict) # 字典的属性依然可以使用
Out[16]: True

In [17]: for i in dd:print(i)
jim
ji
jii

# 按照属性依然可以打印出来

In [6]: from collections import OrderedDict

In [7]: dd = OrderedDict()

In [8]: dd['jim'] = (1,33)

In [9]: dd['ji'] = (2,36)

In [10]: dd['jii'] = (3,38)

In [15]: dd

Out[15]: OrderedDict([('jim', (1, 33)), ('ji', (2, 36)), ('jii', (3, 38))])

In [16]: isinstance(dd,dict) # 字典的属性依然可以使用

Out[16]: True

In [17]: for i in dd:print(i)

jim

jii

# 按照属性依然可以打印出来

from time import time
from random import randint
from <span class='wp_keywordlink_affiliate'><a href="https://www.168seo.cn/tag/collections" title="View all posts in collections" target="_blank">collections</a></span> import OrderedDict

d = OrderedDict()
players = list('ABCDEFGH') # 参赛人员名称
# 考试开始时间
start = time() #获取当前时间安

for i in range(8):
# 等待输入
input()
p = players.pop(randint(0,7 - i))
end = time()
# 排名，人名，考试时间
print(i + 1,p,end - start),
d[p] = (i+1,end - start)

print('-' * 20)
for k in d:
print(k,d[k])