"""
写一个用户登录验证程序，文件如下
6666.json:
{"expire_date": "2021-01-01", "debit_id": 6666, "status": 0, "pay_day": 22, "password": "sdf"}
1. 用户id即为json文件名的前缀，密码为password字段,
2. 判断是否过期，与expire_date进行对比。
3. 登陆成功后，打印“登陆成功”，三次登陆失败，status值改为1，并且锁定账号。
4. json文件中用户的密码采用密文保存,使用md5加密算法(计算结果与Linux中md5sum结果一致)
"""
# _*_ coding:utf-8 _*_
# Author: daihaijun
import time
import json
import hashlib
def md5sum(password):
md5_o = hashlib.md5(bytes(password,encoding="utf-8"))
return md5_o.hexdigest()
user_file = "6666.json"
ufo = open(user_file,'r+')
def read_bank_card():
d_card = json.load(ufo)
return d_card
def write_bank_card(data):
str_json = json.dumps(data)
ufo.seek(0)
ufo.truncate()
ufo.write(str_json)
ufo.close()
data_card = read_bank_card()
count = 0
while count < 3:
user_input = input("Pls input password:")
if md5sum(user_input) == data_card['password']:
if data_card['status'] == 1:
print("您的账号处于锁定状态,请到柜台进行处理.")
break
else:
if time.strftime('%Y-%m-%d') > data_card['expire_date']:
print("Your account has expired.Pls contact counter staff.")
else:
print("Login sucess!")
print(data_card)
break
else:
print("密码错误,请重新输入.")
count += 1
continue
else:
print("密码输入错误已达3次,您的账号已被锁定,请到柜台进行处理.")
data_card['status'] = 1
write_bank_card(data_card)
