day1-登录系统

#!/usr/bin/env python
# -*- coding: utf-8 -*-
import getpass
file=open('passwd.txt','r',encoding='utf-8')
filewrong=open('passwd_wrong.txt','r',encoding='utf-8')
login_pwd=eval(file.read())
login_wrong=eval(filewrong.read())
file.close()
filewrong.close()
i=1
list=[]
list=login_wrong
login="err"
while i<=3 :
    account = input("Account:")
    password = getpass.getpass("password;")
    if account in login_wrong:
        print("user locked!!")
    else:
        for i2 in range(len(login_pwd)):
            if account == login_pwd[i2][0]:
                login="user"
                if password == login_pwd[i2][1]:
                    print("login success!")
                    login="success"
                    break
                else:
                    print("Try Again!!You only have %d chances left." % (3 - i))
                    i+=1
            else:
                login="nouser"
        if login=="nouser":
            print("user:%s no exit!!" % account)
        if login=="success":
            break
else:
    print("user locked!!")
    filewrong=open('passwd_wrong.txt','w',encoding='utf-8')
    list.append(account)
    print(str(list))
    data=str(list)
    filewrong.write(data)
    filewrong.close()

文件1 passwd.txt

[["abc123","password"],["aaa","bbb"]]

文件2 passwd_wrong.txt

['abc123']

二 . 笔记记录下代码实现过程