Group chat how to @others, how to reply to a particular person

If you are using group chat and want to @someone, you can add "@user business card" to the front of the message, but this is too troublesome unless you remember their name. You can first type an "@" symbol, as shown below

This article is based on experience

Then write the message and send it, as shown below

If you want to @someone, there is an easier way, in the chat window, long press the photo of the person who wants to @, as shown below

Then you can @ him, and then write a message to send it, as shown below