def str2num(s): try: return int(s) except ValueError as v: print("Error:" , v) return float(s)
def calc(exp): ss = exp.split('+') ns = map(str2num, ss) return reduce(lambda acc, x : acc + x, ns )
def main(): r = calc('100 + 200 + 345') print('100 + 200 + 345 = ',r) r = calc('99 + 88 + 7.6') print ('99 + 88 + 7.6 = ', r)
main()
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惟莉V雅爱
def str2num(s): try: return int(s) except ValueError as v: print("Error:" , v) return float(s)
def calc(exp): ss = exp.split('+') ns = map(str2num, ss) return reduce(lambda acc, x : acc + x, ns )
def main(): r = calc('100 + 200 + 345') print('100 + 200 + 345 = ',r) r = calc('99 + 88 + 7.6') print ('99 + 88 + 7.6 = ', r)
main()