What's the difference between "everyone can watch it, friends can watch it, designated people can watch it, and only themselves can watch it" in QQ space?

On the premise that QQ space is open to everyone, talking about being visible to everyone means that as long as other users enter your QQ space, they can see this talk.

Friends visible means that only people in your QQ friends list will see this message, but strangers can't see it when they enter your space.

Visible to the designated person means that only the users you check will see your conversation, and no one else can.

Only you can see this statement: no one can see it except yourself, that is, only you can see it.

Every qq user can open his own qq space for free. Among the many functions of qq space, there is a module called Talk, which is space dynamics. The content can be what happened to you, what you have been thinking about, a classic sentence, etc. And all kinds of show love, show off wealth and bask in happiness. Is a very open communication platform, generally among qq friends. This is a very important channel for friends to know each other's recent situation. Many people discuss it every day, and some people can comment freely, in a form similar to that of Weibo.