mirror of
https://github.com/krahets/hello-algo.git
synced 2024-12-27 01:26:28 +08:00
39 lines
808 B
Python
39 lines
808 B
Python
'''
|
|
File: stack.py
|
|
Created Time: 2022-11-29
|
|
Author: Peng Chen (pengchzn@gmail.com)
|
|
'''
|
|
|
|
import os.path as osp
|
|
import sys
|
|
|
|
sys.path.append(osp.dirname(osp.dirname(osp.abspath(__file__))))
|
|
from include import *
|
|
|
|
if __name__ == "__main__":
|
|
""" 初始化栈 """
|
|
stack = []
|
|
|
|
""" 元素入栈 """
|
|
stack.append(1)
|
|
stack.append(3)
|
|
stack.append(2)
|
|
stack.append(5)
|
|
stack.append(4)
|
|
print("栈 stack = ", stack)
|
|
|
|
""" 访问栈顶元素 """
|
|
peek = stack[-1]
|
|
print("栈顶元素 peek = ", peek)
|
|
|
|
""" 元素出栈 """
|
|
pop = stack.pop()
|
|
print("出栈元素 pop = ", pop)
|
|
print("出栈后 stack = ", stack)
|
|
|
|
""" 获取栈的长度 """
|
|
size = len(stack)
|
|
print("栈的长度 size = ", size)
|
|
|
|
""" 判断是否为空 """
|
|
isEmpty = (stack == [])
|