用户登录注册

#  用户登录注册
# 注册
import hashlib
user = input('请输入用户名:')
pasd = input('请输入密码:')
md5_obj = hashlib.md5(user.encode('utf-8'))
md5_obj.update(pasd.encode('utf-8'))
ret = md5_obj.hexdigest()
with open('information','w') as f:
    f.write(ret)

# 登录

import hashlib
user = input('请输入用户名:')
pasd = input('请输入密码:')
md5_obj = hashlib.md5(user.encode('utf-8'))
md5_obj.update(pasd.encode('utf-8'))
ret = md5_obj.hexdigest()

with open('information') as f:
    for i in f:
        if ret == i:
            print('登陆成功')
        else:
            print('错误')