IC卡初始化加密后，交给用户使用时，客户通过IC卡发行系统，又将各用户卡生成自己系统的专用密钥。
IC card initialization encryption, to users, customers IC card issuance systems, the CARDS will generate its own system dedicated key.
在顶部，您要检查用户是否已经将页面提交给您；如果提交，将使用PD o库将记录添加到数据库中。
At the top, you check to see if the user has posted this page to you; if so, you add a record to the database using the PDO library.
浏览器把身份管理的问题交给网站，并迫使用户适应每个网站的登录模式。
The browser leaves websites to re-implement identity management, and forces users to learn a new scheme for every site...
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