Open qq on the computer, enter qq account number and password, and log in QQ;
After logging in, click the QQ space above the main interface;
After entering personal qq space, click the Settings button in the upper right corner of the interface and click "Modify Information" in the drop-down list;
Click "Spatial Data" under "Personal Data";
Find the "signature file" column, enter text content or upload photos in it, and finally click "Save" at the bottom;
After setting the signature file, open someone else's qq space and click "Message Board";
Enter the message content in the message editing field and click "Use signature file";
After leaving a message, click "Show Signature File" to view the text of the signature file after leaving a message.