login

import getpass
import sys
f = open('user.db','r')
welcome="欢迎来欢乐多购物平台"
data = f.read()
f.close()
user_db_list = []
user_info_list = data.split('
')
print(user_info_list)

for item in user_info_list:
    temp = item.split('|')
    v = {
        'name': temp[0],
        'password': temp[1],
        'number': temp[2],
    }
    user_db_list.append(v)
print(welcome)
p = 0
while True:
    user_name = input('请输入您的账号：')
    if user_db_list:
        user_password = input('请输入您的密码：')
    for index,user_list in enumerate(user_db_list):
        if user_name == user_list['name'] and int(user_list['number']) < 3:
            if user_password == user_list['password']:
                print('欢迎',user_name,'登录我们平台')
                sys.exit()
            else:
                print('账号密码错误，请重新输入')
                # data_read = open('user.db','r')
                #
                # data_write = open('user.db', 'w')
                # data_write.write()
                break
        else:
            print('您输入的是未注册账号')
            break
    p += 1
    if p == 3:
        print('你的尝试超过限定次数，已退出')
        break