from collections imort OrderedDict

d = OrderedDict()

d['aa'] = (1, 30)

d['bb'] = (2, 31)

d['cc'] = (3, 32)

验证:

for k in d:

print(k)

输出:aa  bb  cc(按输入时的顺序输出)

from collections imort OrderedDict

d = OrderedDict()

d['aa'] = (1, 30)

d['bb'] = (2, 31)

d['cc'] = (3, 32)

验证:

for k in d:

print(k)

输出:aa  bb  cc(按输入时的顺序输出)

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