How does WeChat intercept friends' information?

According to the experience of querying Baidu, WeChat can block someone's message in the following three ways:

1. Pull into the blacklist: in the friend profile settings, just open the blacklist;

2. Set someone's chat message not to be disturbed: in the chat message, just open the message without being disturbed;

3. Delete friends, and you will not be able to receive messages from friends after deletion.

Wechat is a free application launched by Tencent on 201110, which provides instant messaging service for intelligent terminals. It was created by the product team of Tencent Guangzhou R&D Center led by Zhang Xiaolong.