Python3源码_账号密码输入接口

流程图：



 1 #!/usr/bin/env python
# -*- coding:utf-8 -*-
#Author:SKING
"""
题目：
输入账号，密码
1.输入三次后提示休息5s
2.密码重复输入三次后锁定账户
说明：
locked_user.txt  存储锁定的账号   初始内容为空
user_password.txt  存储用户名和密码  用户名和密码中间用'\t'制表符间隔
"""

import string, sys, time

def wait_5s():  #等待5秒的函数
    print('You input too many times,please wait 5s...')
    for a in range(5, 1, -1):
        print(f'{a}s')
        time.sleep(1)

count = 0 #记录用户输入的次数
count_pwd = 3 #记录用户输入密码的次数

while count<3: #超过三次调用休息5s函数
    count +=1
    username = input('username:') #输入用户名
    if username == '':
        print('用户名不能为空！请重新输入！')
        if count == 3:
            wait_5s() #超过三次调用休息5s函数
            count = 0
        continue
    #打开'locked_user.txt'文件
    with open('locked_user.txt', 'r', encoding='utf-8') as file_locked_user:
        for i in file_locked_user: #循环读取file_locked_user
            i = i.strip() #去除i中的空格 换行等
            if username == i:
                print(f'{username} is locked!')
                chose_key = input('Press "Q" to exit!Press any key to continue:')
                if chose_key == 'Q' or chose_key == 'q':
                    sys.exit(0)
    # 打开'user_password.txt'文件
    with open('user_password.txt', 'r', encoding='utf-8') as file_user_password:
        for j in file_user_password:
            (file_username, file_password) = j.strip().split('\t') #提取用户名、密码
            if username == file_username:
                while count_pwd > 0:
                    print(f'You have {count_pwd} times,then will locked!')
                    password = input('password:')
                    if password == file_password:
                        print('Welcome to Python!') #账号、密码正确登录系统
                        sys.exit(0)
                    else:
                        print('Password is wrong,Please re-enter...')
                        count_pwd -= 1
                    if count_pwd == 0: #输错三次密码，账号就没锁定
                        #打开'locked_user.txt'文件并写入要锁定的账号
                        with open('locked_user.txt', 'r+', encoding='utf-8') as write_locked_user:
                            write_locked_user.write(username)
                        print(f'{username} is locked!')
                        sys.exit(0)
        else:
            print(f'{username} is not exist,Please re-enter...')

    if count == 3: #如果输入超过三次就等待5s
        wait_5s()
        count = 0