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# -*- coding: utf-8 -*-
"""
Created on Fri May 10 13:57:50 2019
@author: Administrator
"""
it = {'a':'101', 'b':'102', 'c':'103'}
for keys in it:
print(keys, end = ' ')
print('\n--------\n')
it_it = iter(it)
#print(it_it)
#
#print(list(it_it))
print(next(it_it))
print(next(it_it))
print(next(it_it))
#print(next(it_it))
运行:
a b c
--------
a
b
c