from functools import reduce
def str2num(s): return int(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) try: r = calc('99 + 88 + 7.6') except Exception as e: print(e) print('99 + 88 + 7.6 =', r)
main() print(int("7.6")) #这个是错误的 print(int("76")) #这个就没问题啦
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沉默的斑竹
from functools import reduce
def str2num(s): return int(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) try: r = calc('99 + 88 + 7.6') except Exception as e: print(e) print('99 + 88 + 7.6 =', r)
main() print(int("7.6")) #这个是错误的 print(int("76")) #这个就没问题啦