How to delete Zhihu from qq dynamic praise record?

Qq dynamic praise records delete Zhihu like this:

1. First, enter the message of qq friends and click the like button.

2. Secondly, the spatial display was praised, and the nickname of Zhihu appeared. Click the like button again.

3. Finally, the like button turns gray and the nickname disappears. Just cancel Zhihu's liking successfully. The above is the method of deleting Zhihu from qq dynamic praise records.