I have a website which hosts events, is registered as an FB App and supports FB Login.
我有一个网站举办活动，注册为FB的应用程序和支持FB登录。
With user login and registration functions, if users do not have a user name and secret the codes would be registered, if we have a user name and password should landing;
具有用户登录和注册的功能，如果用户没有用户名和密码就应该注册，如果有了用户名和密码就应该登陆；
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