Python 出队
Python 出队详细操作教程
双端队列或双端队列支持从任一端添加和删除元素。更常用的堆栈和队列是双端队列的退化形式，其中输入和输出限制为单端。
# Filename : example.py
# Copyright : 2020 By Lidihuo
# Author by : www.lidihuo.com
# Date : 2020-08-15
import collections
DoubleEnded = collections.deque(["Mon","Tue","Wed"])
DoubleEnded.append("Thu")
print ("Appended at right - ")
print (DoubleEnded)
DoubleEnded.appendleft("Sun")
print ("Appended at right at left is - ")
print (DoubleEnded)
DoubleEnded.pop()
print ("Deleting from right - ")
print (DoubleEnded)
DoubleEnded.popleft()
print ("Deleting from left - ")
print (DoubleEnded)
# Filename : example.py
# Copyright : 2020 By Lidihuo
# Author by : www.lidihuo.com
# Date : 2020-08-15
Appended at right -
deque(['Mon', 'Tue', 'Wed', 'Thu'])
Appended at right at left is -
deque(['Sun', 'Mon', 'Tue', 'Wed', 'Thu'])
Deleting from right -
deque(['Sun', 'Mon', 'Tue', 'Wed'])
Deleting from left -
deque(['Mon', 'Tue', 'Wed'])
