def findMinAndMax(L = None):
if L == None or L == []:
return(None,None)
else:
min=L[0]
max=L[0]
for i in L:
if i < min:
min = i
elif i > max:
max = i
return(min,max)
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岳勉知行合一
def findMinAndMax(L = None):
if L == None or L == []:
return(None,None)
else:
min=L[0]
max=L[0]
for i in L:
if i < min:
min = i
elif i > max:
max = i
return(min,max)