一、namedtuple
二、OrderedDict
三、deque
参考
[1] https://pymotw.com/2/collections/index.html#module-collectios
[2] https://docs.python.org/2.7/library/collections.html#module-collections
[1] https://pymotw.com/2/collections/index.html#module-collectios
[2] https://docs.python.org/2.7/library/collections.html#module-collections