【Python实例】登录验证系统

'''
    账户验证系统:
    正确文件记录在right.txt
    多次登录失败账号记录在lock.txt中
'''

if __name__ ==  '__main__' :

    '''
    初始化信息：
    wrong_times 当前输入密码错误次数
    wrong_max_times 允许输入密码错误次数
    account_file 账户密码保存文件
    lock_file 小黑屋
    '''
    wrong_times = 0
    wrong_max_times = 3
    account_file = 'right.txt'
    lock_file = 'lock.txt'
    Flag = 1

    while Flag:
        print("请输入你的账号密码：")
        id = input("Please input your id:")
        if id == 'quit':
            exit()
        pwd = input("Please input your pwd:")

        with open(lock_file,"a+") as lock:
            for aaa in lock.readlines():
                if id == aaa.strip().split()[0]:

                    print("你的账号在小黑屋呢，不能用")
            else:
                with open(account_file,"r") as right:
                    if wrong_times < wrong_max_times :
                        for bbb in right.readlines():
                            if id == bbb.strip().split()[0] and pwd == bbb.strip().split()[1]:
                                print("欢迎登录！")
                                right.close()
                            else:
                                wrong_times += 1
                    else:
                        lock.write('\n'+id)
                        lock.close()
                        print("你的账号已经在小黑屋")
                        Flag = 0