# # 1、把登录与注册的密码都换成密文形式
# import hashlib
#
#
# def register():
# m = hashlib.md5()
# username = input("请输入要注册的账号：")
# password = input("请输入要注册的密码：")
# password2 = input("请再次输入的密码：")
# if password == password2:
# m.update(password.encode("utf-8"))
# res = m.hexdigest()
# print(res)
# with open("db.txt", "a", encoding="utf-8")as f:
# f.write(f'{username}:{res}\n')
#
#
# def login():
# user_inp = input("请输入你的账号：")
# pwd_inp = input("请输入你的密码：")
# with open("db.txt", "r", encoding="utf-8")as f1:
# user = hashlib.md5()
# user.update(pwd_inp.encode("utf-8"))
# res = user.hexdigest()
# for line in f1:
# username, password = line.strip().split(":")
# if user_inp == username:
# if res == password:
# print("登录成功")
# return
# else:
# print('密码错误')
# else:
# print("账号不存在")
#
#
# register()
# login()
#
#
# # 2、文件完整性校验（考虑大文件）
# def official_file_hx():
# with open("official_file", "rt", encoding="utf-8")as f:
# l = [20, 30, 40] # l根据需求改变
# m = hashlib.md5()
# for i in l:
# f.seek(i, 0)
# res = f.read(5)
# m.update(res.encode("utf-8"))
# res = m.hexdigest()
# return res
#
#
# def download_file_hx():
# with open("download_file", "rt", encoding="utf-8")as f:
# l = [20, 30, 40]
# m = hashlib.md5()
# for i in l:
# f.seek(i, 0)
# msg = f.read(5)
# m.update(msg.encode("utf-8"))
# res = m.hexdigest()
# if res == official_file_hx():
# print("文件完整")
# else:
# print("文件不完整")
#
#
# download_file_hx()
# # 3、注册功能改用json实现
# import json
#
#
# def register():
# m = hashlib.md5()
# username = input("请输入要注册的账号：")
# password = input("请输入要注册的密码：")
# password2 = input("请再次输入的密码：")
# if password == password2:
# m.update(password.encode("utf-8"))
# res = m.hexdigest()
# print(res)
# with open("db.txt", "a", encoding="utf-8")as f:
# # f.write(f'{username}:{res}\n')
# user_dict = {username: res}
# json.dump(user_dict, f)
#
#
# register()
# 4、项目的配置文件采用configparser进行解析
# import configparser
#
# config = configparser.ConfigParser()
#
# config.read('text.ini')
#
# print(config.sections())
#
# print(config.options('section1'))
#
# print(config.items('section1'))
#
# res = config.get('section1', 'is_admin')
#
# print(res, type(res))
#
# print(config.getint('section1', 'age'))
#
# print(config.getfloat('section1', 'age'))
#
# print(config.getboolean('section1', 'is_admin'))