摘要: 后续完善各种循环案例 while True: try: str_num = input('input a number:') num = float(str_num) print("你输入的是:{}".format(num)) break #若输入的正确,则退出,错误执行except下面代码 exc 阅读全文
posted @ 2019-11-28 14:08 FishMan552 阅读(3186) 评论(0) 推荐(0)