def findMinAndMax(L): if len(L) == 0: return (None, None) min = L[0] max = L[0] for x in L: if x <= min: min = x if x >= max: max = x return (min, max)
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!')
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杰瑞的历险记
-- coding: utf-8 --
def findMinAndMax(L): if len(L) == 0: return (None, None) min = L[0] max = L[0] for x in L: if x <= min: min = x if x >= max: max = x 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!')