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', encoding="utf-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')