24 lines
553 B
Python
24 lines
553 B
Python
def multiply(a, b):
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"""计算两个数字的乘积并返回结果"""
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return a * b
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def divide(a, b):
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"""计算两个数字相除并返回结果，如果除数为零则返回None"""
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if b == 0:
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return None
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return a / b
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if __name__ == "__main__":
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# 测试乘法函数
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result = multiply(3, 4)
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print(f"3 * 4 = {result}")
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# 测试除法函数
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result_div = divide(10, 2)
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print(f"10 / 2 = {result_div}")
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# 测试除数为零的情况
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result_zero = divide(5, 0)
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print(f"5 / 0 = {result_zero}") |