def findMinAndMax(L):
if L==[]:
return (None,None)
else:
a=max(L)
b=min(L)
return b,a
这位同学没认真看题目要求
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徐轲l
def findMinAndMax(L):
if L==[]:
return (None,None)
else:
a=max(L)
b=min(L)
return b,a