def find_min_and_max(L): if len(L) == 0: return (None, None) f_min = L[0] f_max = f_min for v in L: if v < f_min: f_min = v if v >= f_max: f_max = v return (f_min, f_max)
if find_min_and_max([]) != (None, None): print('测试失败!') elif find_min_and_max([0, 0]) != (0, 0): print('测试失败!') elif find_min_and_max([7]) != (7, 7): print('测试失败!') elif find_min_and_max([7, 1]) != (1, 7): print('测试失败!') elif find_min_and_max([7, 1, 3, 9, 5]) != (1, 9): print('测试失败!') else:
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skychi
def find_min_and_max(L): if len(L) == 0: return (None, None) f_min = L[0] f_max = f_min for v in L: if v < f_min: f_min = v if v >= f_max: f_max = v return (f_min, f_max)
测试
if find_min_and_max([]) != (None, None): print('测试失败!') elif find_min_and_max([0, 0]) != (0, 0): print('测试失败!') elif find_min_and_max([7]) != (7, 7): print('测试失败!') elif find_min_and_max([7, 1]) != (1, 7): print('测试失败!') elif find_min_and_max([7, 1, 3, 9, 5]) != (1, 9): print('测试失败!') else: