if not len(L):
return None,None
else:
max=L[0]
min=L[0]
for i in L:
if max < i:
max = i
if min > i:
min = i
return min,max
if L==[]:
return (None, None)
if i>max:
max=i
if i<min:
min=i
return (min, max)
我擦 我就这么做的
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master_Hang
if not len(L):
return None,None
else:
max=L[0]
min=L[0]
for i in L:
if max < i:
max = i
if min > i:
min = i
return min,max