python文件读取

import datetime import time def date(): now datetime.datetime.now() time now.strftime(%Y-%m-%d %H:%M:%S) return time User_list {张三: 123456, 李四: 123456, 王五: 123456} print(**60) print(学生管理系统) print(**60) while True: name input(请输名字) try: pwd int(input(请输入密码)) except ValueError as e: print(f类型错误请重新输入) with open(E://log.txt, a, encodingutf-8) as f: if name in User_list: if pwd User_list[name]: f.write(f{name}登录成功 {date()}\n) else: f.write(f{name}密码错误 {date()}\n) else: f.write(f{name}不存在 {date()}\n)