摘要：
``` javascript 001 ``` 阅读全文
摘要：
``` bash
>>> from collections import deque
>>> q = deque(maxlen=3)
>>> q.append(1)
>>> q.append(2)
>>> q.append(3)
>>> print q
deque([1, 2, 3], maxlen=3)
>>> q.append(4)
>>> print q
deque([2, 3, 4], m... 阅读全文