Python12期培训班-day1-登陆验证代码分享

#!/usr/bin/env python
import sys
import getpass
afile = 'afile'
bfile = 'bfile'
circulation_num=0  #循环次数初始基数
def deny_account(username):
        print("This account already locked!")
        with open(bfile, 'a+') as bf:     #此处最好为a+模式，本人之前使用a模式错误账号无法写入
            bf.write(username + '\n')
#循环开始
while circulation_num<3:
        username = input("\033[32;1mPlease input your username:\033[0m")
        flag = False
        with open(afile, 'r') as af:
                for line in af.readlines():
                        user,pwd=line.strip().split()
                        if username==user:
                                password=getpass._raw_input('Please input password:').strip()
                                if username==user and password ==pwd:
                                    print('success!')
                                    flag = True
                                    break
                                else:
                                     print('password error,please try again!')
                        else:
                            if circulation_num < 3:
                              print('User doesn`t exist!')
                              circulation_num += 1
                        break
        if flag == True:
                print('Welcome %s come in TG!' % username)
                break
else:
    deny_account(username)

 afile内容：

carl openstack

helen tellme

lucy tianle

linken is3333

bfile内容随意