How does WeChat reject each other's information without hacking it?

Just turn on the Do Not Disturb switch. Let me demonstrate the detailed operation steps below? (ゝω)

(Mobile phone model: Yijia 1 1, software and version number: WeChat 8.0.3 1)

1. Open WeChat and click the contact to enter.

2. Then click Friends to enter.

3. After entering a new page, click Send Message.

4. On the chat page, click on the three points in the upper right corner.

Finally, just turn on the "Do Not Disturb" message switch.