user identifier

It analyses the key issues for services convergence including uniform session control, uniform user identifier, uniform user data and subscription information management, uniform charging and uniform services deployment, then the corresponding solutions.

认为实现业务融合的关键技术包括统一的会话管理、统一的用户标识、统一的用户数据及签约信息管理、统一的帐单服务以及统一的业务提供，分析了对应的解决方法。

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For o= unfollow, it looks for a numeric user identifier and uses the API to remove the authenticated user's follower relationship with the specified user.

当o=unfollow时，它会寻找数值型用户标识符并且使用API来删除已验证用户的关注者名单中指定的用户。

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