You can see that a logged-in user can log out or view his or her profile, and a logged out user can sign up or log in.

您会发现已登录的用户可以登出系统或查看其配置文件，而已登出的用户则可以注册或再次登录。

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You can see that a logged-in user can log out or view his or her profile, and a logged out user can sign up or log in.

您会发现已登录的用户可以登出系统或查看其配置文件，而已登出的用户则可以注册或再次登录。

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