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37 lines
852 B
37 lines
852 B
"""
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File: stack.py
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Created Time: 2022-11-29
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Author: Peng Chen (pengchzn@gmail.com)
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"""
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"""Driver Code"""
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if __name__ == "__main__":
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# 初始化堆疊
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# Python 沒有內建的堆疊類別，可以把 list 當作堆疊來使用
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stack: list[int] = []
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# 元素入堆疊
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stack.append(1)
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stack.append(3)
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stack.append(2)
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stack.append(5)
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stack.append(4)
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print("堆疊 stack =", stack)
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# 訪問堆疊頂元素
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peek: int = stack[-1]
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print("堆疊頂元素 peek =", peek)
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# 元素出堆疊
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pop: int = stack.pop()
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print("出堆疊元素 pop =", pop)
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print("出堆疊後 stack =", stack)
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# 獲取堆疊的長度
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size: int = len(stack)
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print("堆疊的長度 size =", size)
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# 判斷是否為空
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is_empty: bool = len(stack) == 0
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print("堆疊是否為空 =", is_empty)
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