mirror of
https://github.com/krahets/hello-algo.git
synced 2025-11-04 14:18:20 +08:00
37 lines
810 B
Python
37 lines
810 B
Python
"""
|
|
File: stack.py
|
|
Created Time: 2022-11-29
|
|
Author: Peng Chen (pengchzn@gmail.com)
|
|
"""
|
|
|
|
"""Driver Code"""
|
|
if __name__ == "__main__":
|
|
# 初始化栈
|
|
# Python 没有内置的栈类，可以把 list 当作栈来使用
|
|
stack: list[int] = []
|
|
|
|
# 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: int = stack[-1]
|
|
print("栈顶元素 peek =", peek)
|
|
|
|
# 元素出栈
|
|
pop: int = stack.pop()
|
|
print("出栈元素 pop =", pop)
|
|
print("出栈后 stack =", stack)
|
|
|
|
# 获取栈的长度
|
|
size: int = len(stack)
|
|
print("栈的长度 size =", size)
|
|
|
|
# 判断是否为空
|
|
is_empty: bool = len(stack) == 0
|
|
print("栈是否为空 =", is_empty)
|