在Python中如何让字典保持有序

d = dict()
print(d)
d['Jim'] = (1, 35)
d['Leo'] = (2, 37)
d['Bob'] = (3, 40)
print(d)
 
# 希望迭代字典时候，按每项先后进入顺序打印
for k in d:
    print(k)
 
# 导入有序字典
from collections import OrderedDict
 
d2 = OrderedDict()
d['Jim'] = (1, 35)
d['Leo'] = (2, 37)
d['Bob'] = (3, 40)
for k in d:
    print(k)

# 编程模拟选手
players = list('ABCDEF')
# 模拟选手的答题时间
from time import time
from random import randint
from collections import OrderedDict
 
d = OrderedDict()
start = time()
for i in range(6):
    # 等待用户输入，作为阻断进程
    input()
    # 每次随机选择一名选手答题完毕
    p = players.pop(randint(0, 5 - i))
    end = time()
    print(i + 1, p, end - start)
    # 记录成绩
    d[p] = (i + 1, end - start)
 
print()
print('-' * 20)
# 按先后进入字典顺序，打印成绩单
for k in d:
    print(k, d[k])