PYthon-3.31作业

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

text.ini
[section1]
k1 = v1
k2:v2
user=egon
age=18
is_admin=true
salary=31
[section2]
k1 = v1

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'))