Python_堆栈和队列

堆栈和队列

(1)堆栈，新放进去的先取出

#encoding=utf-8

>>> stack = [3, 4, 5]
>>> stack.append(6)
>>> stack.append(7)
>>> print (stack)
[3, 4, 5, 6, 7]
>>> print (stack.pop())
7
>>> print (stack)
[3, 4, 5, 6]
>>> print (stack.pop())
6
>>> print (stack.pop())
5
>>> print (stack)
[3, 4]
>>>

 

(2)队列

队列：按顺序取出

(一)简单应用

s = ["a","b","c","d","e"]

s.pop(0)

print(s)