Python-登录

import time

with open(‘user.txt‘) as fr:
    result = fr.read()
users = {}
if result:
    all_user_pwd = result.split(‘\n‘)
    for i in all_user_pwd:
        user = i.split(‘,‘)[0]
        pwd = i.split(‘,‘)[-1]
        users[user]=pwd
while True:
    username = input(‘请输入账号：‘).lower().strip()
    password = input(‘请输入密码：‘).strip()
    if username == ‘‘ and password == ‘‘:
        print(‘不能为空‘)
    elif username in users:
        if password==users.get(username):
            print(‘%s登录成功，今天的日期是%s‘ % (username, time.strftime(‘%Y-%m-%d %H:%M:%S‘)))
            break
        else:
            print(‘密码不对‘)
    else:
        print(‘账户不存在‘)