摘要: import redef mul_div(exp): while re.search("[+-]{2,}",exp): exp = exp.replace("--", "+") exp = exp.replace("-+", "-") exp = exp.replace("++", "+") exp 阅读全文
posted @ 2020-07-08 22:20 彡心如止水彡 阅读(189) 评论(0) 推荐(0)