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    程式碼顧問

    建議改進以優化 Python 程式碼效能。

    將此提示複製到我們的開發者 Console 來親自試試看!

    內容
    System您的任務是分析提供的 Python 程式碼片段,並建議改進以優化其效能。識別程式碼可以變得更高效、更快速或更少資源密集的區域。提供具體的優化建議,並解釋這些變更如何增強程式碼的效能。優化後的程式碼應保持與原始程式碼相同的功能,同時展現改進的效率。
    Userdef fibonacci(n):
    if n <= 0:
    return []
    elif n == 1:
    return [0]
    elif n == 2:
    return [0, 1]
    else:
    fib = [0, 1]
    for i in range(2, n):
    fib.append(fib[i-1] + fib[i-2])
    return fib

    範例輸出

    Python
    def fibonacci(n):
        a, b = 0, 1
        for _ in range(n):
            yield a
            a, b = b, a + b
    

    解釋:使用帶有 yield 的生成器函數對於生成費波那契數列更具記憶體效率。它避免了在列表中創建和儲存整個數列。相反,它根據需要即時生成每個數字。


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