Python2 下如何使字典保持有序排列

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# 使用collections中OrderedDict使字典保持有序
d = {}

d['Jim'] = (1,35)

d['Bob'] = (2,37)

d['Leo'] = (3,40)

for k in d: print k

from collections import OrderedDict

d = OrderedDict()

d['Jim'] = (1,35)

d['Bob'] = (2,37)

d['Leo'] = (3,40)

for k in d: print k

#~~~~~实际案例：模拟竞赛系统加深印象

from time import time
from random import randint
from collections import OrderedDict
players = list('ABCDEFGH')
d = OrderedDict()
start = time()
for i in xrange(8):
    raw_input()
    p=players.pop(randint(0,7-i))
    end = time()
    print i + 1,p,end - start
    d[p]=(i+1,p,end-start)

print '-'*20

for k in d:
 print k,d[k]