If the space has not been posted, please tell me how to delete it but it cannot be posted or deleted.

1. First, open the qq client, as shown in the figure below, and then proceed to the next step.

2. Secondly, after completing the above steps, select the "Friend Updates" option pointed by the red arrow, as shown in the figure below, and then proceed to the next step.

3. Then, after completing the above steps, select the "Talk" option pointed by the red arrow, as shown in the picture below, and then proceed to the next step.

4. Then, after completing the above steps, select the history icon indicated by the red arrow on the page, as shown in the figure below, and then proceed to the next step.

5. Finally, after completing the above steps, find the comment that has not been sent, click the downward arrow icon in the upper right corner, and select "Delete" in the menu that appears, as shown in the figure below . In this way, the problem is solved.