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田田的专属爸爸

#1 Created at ... [Delete] [Delete and Lock User]

def findMinAndMax(L):

    if L==[]:

        return (None,None)

    else :  

        ax = max(L)

        ix = min(L)  

        return (ix , ax )

# 测试

if findMinAndMax([]) != (None, None):

    print('测试失败!')

elif findMinAndMax([7]) != (7, 7):

    print('测试失败!')

elif findMinAndMax([7, 1]) != (1, 7):

    print('测试失败!')

elif findMinAndMax([7, 1, 3, 9, 5]) != (1, 9):

    print('测试失败!')

else:

    print('测试成功!')

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