模拟登录

模拟登陆：
1. 用户输入帐号密码进行登陆
2. 用户信息保存在文件内
3. 用户密码输入错误三次后锁定用户

代码如下:

#!/usr/bin/env python3

username = input("username: ")

count = 0
flag = False
lock_list = []

with open("lock.txt", "r") as f:
    lock_f = f.readlines()

for lock in lock_f:
    lock_list.append(lock.strip("\n"))

if username in lock_list:
    print("用户%s已被锁定，请联系管理员!" % username)
else:
    while True:
        count += 1
        password = input("password: ")
        with open("passwd.txt", "r") as open_passwd_file:
            read_passwd_file = open_passwd_file.readlines()

        for line in read_passwd_file:
            user_pass = line.strip().split(":")

            if username == user_pass[0] and password == user_pass[1]:
                print("欢迎用户%s成功登录" % username)
                flag = True
                break
            else:
                continue

        if flag is True:
            break
        else:
            if count == 3:
                lock_file = open("lock.txt", "a")
                lock_file.write("%s\n" % username)
                lock_file.close()
                print("用户%s密码输入错了3次,此用户已被锁定,请联系管理!" % username)
                break

注:运行代码前要创建lock.txt、passwd.txt文件:
cat passwd.txt
ww1:ww1!
ww2:ww2!
ww3:ww3!