摘要: import reimport timeprint("请输入需要计算的公式:")source = input()t1=time.time()# source='6+7/(5-4*3/2+23)'def check(s): flag = True if re.search('[a-z]', s): f 阅读全文
posted @ 2019-03-23 20:00 RedFace 阅读(224) 评论(0) 推荐(0) 编辑