def findMinAndMax(L):
if L == []: return (None, None)
__min = __max = L[0] # 用第一个元素初始化
for l in L:
if l < __min:
__min = l
if l > __max:
__max = l
return (__min, __max)
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新军
def findMinAndMax(L):
if L == []: return (None, None)
__min = __max = L[0] # 用第一个元素初始化
for l in L:
if l < __min:
__min = l
if l > __max:
__max = l
return (__min, __max)