# -*- coding: utf-8 -*-
def findMinAndMax(L):
if len(L)==0:
return (None,None)
else:
min=max=L[0]
for m in L:
if m<=min:
min=m
elif m>=max:
max=m
return (min,max)
# 测试
if findMinAndMax([]) != (None, None):
print('测试失败!')
elif findMinAndMax([7]) != (7, 7):
elif findMinAndMax([7, 1]) != (1, 7):
elif findMinAndMax([7, 1, 3, 9, 5]) != (1, 9):
print('测试成功!')
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Kathryn加油呀
# -*- coding: utf-8 -*-
def findMinAndMax(L):
if len(L)==0:
return (None,None)
else:
min=max=L[0]
for m in L:
if m<=min:
min=m
elif m>=max:
max=m
return (min,max)
# 测试
if findMinAndMax([]) != (None, None):
print('测试失败!')
elif findMinAndMax([7]) != (7, 7):
print('测试失败!')
elif findMinAndMax([7, 1]) != (1, 7):
print('测试失败!')
elif findMinAndMax([7, 1, 3, 9, 5]) != (1, 9):
print('测试失败!')
else:
print('测试成功!')