作業要求：

1.輸入用戶名密碼

2.認證成功後顯示歡迎信息

3.輸錯三次後鎖定

代碼如下

_user_list =[]
_user_dict = {}
_login_error_count = 0
while True:
    user_naming = input(‘Plass input your name :‘)
    user_password = input(‘Plass input your password:‘)
    user_data = open(‘UserPassWord‘)
    for _user_data in user_data:
        user_datas 
 
= _user_data.strip()
        user_list = user_datas.split(‘,‘)
        users_name = user_list[0].strip()
        users_password = user_list[1].strip()
        users_lock = user_list[2].strip()
        users_error = int(user_list[3].strip())
        _user_dict[users_name] = {‘name‘:users_name,‘password
 
‘:users_password,‘lockcount‘:users_lock,‘errorcount‘:users_error}
    user_data.close()
    if user_naming in _user_dict.keys():
        if _user_dict[user_naming][‘lockcount‘] == ‘1‘ :
            print(‘you have been locked‘)
            break
        if user_naming == _user_dict[user_naming][‘name
 
‘] and user_password == _user_dict[user_naming][‘password‘]:
            print(‘welcome to enter the system ‘)
            break
        else:
            _user_dict[user_naming][‘errorcount‘] += 1
            if  _user_dict[user_naming][‘errorcount‘]  <  3 :
                print(‘the password was wrong,plase try again!‘)
                write_data = open(‘UserPassWord‘,‘w+‘)
                for user_value in _user_dict.values():
                    _user_list = [user_value[‘name‘],user_value[‘password‘],str(user_value[‘lockcount‘]),str(user_value[‘errorcount‘])]
                    _users_list = ‘,‘.join(_user_list)
                    write_data.write(_users_list+‘\n‘)
                write_data.close()
            else:
                print(‘your name have locked!‘)
                write_data = open(‘UserPassWord‘,‘w+‘)
                _user_dict[user_naming][‘lockcount‘] = 1
                _user_dict[user_naming][‘errorcount‘] = 0
                for user_value in _user_dict.values():
                    _user_list = [user_value[‘name‘],user_value[‘password‘],str(user_value[‘lockcount‘]),str(user_value[‘errorcount‘])]
                    _users_list = ‘,‘.join(_user_list)
                    write_data.write(_users_list+‘\n‘)
                write_data.close()
    else:
        print(‘your password was wrong!‘)
        _login_error_count += 1
        if _login_error_count > 2:
            break

流程圖：

day1:作業 編寫登錄接口並畫出相應的流程圖