萌新提问大佬，我从云数据库中拿到的_openid是唯确定一个设备还是可以确定一个账号？

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萌新提问大佬，我从云数据库中拿到的_openid是唯确定一个设备还是可以确定一个账号？Mengxin asks the boss, is the _openid I got from the cloud database only a device or an account?

Recently I began to learn wechat applet. I seem to understand that different people will have different effects when they add data to the database_ Openid, can I use this_ Openid is the only standard to identify users, just like a user wants to register an account, so he needs to write the account and password to the database, and a field will automatically come out of the database_ Openid, this_ Can openid be used?

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