def findMinAndMax(L): if not L:return (None,None) else: max=min=L[0] for i in L[1:]: if i>max:max=i if i<min:min=i return min,max
你这方法有负数就不对了
不举例子?何来对错
a=[5,6,-9,-18,-100] b=findMinAndMax(a) print(b) >>(-100, 6)
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