2. As shown in the figure, click Data, and then click Edit Data:

3. Enter "QQ for iphone6S is in use" in the "Personal Signature" text box, and click "Save", as shown in the following figure:

4. The following is the effect diagram after successful display:

QQ, short for Tencent QQ, is an Internet-based instant messaging (IM) software developed by Tencent. At present, QQ has covered many mainstream platforms such as Microsoft Windows, OS X, Android, iOS and Windows Phone. Its symbol is a little penguin wearing a red scarf.

Tencent QQ supports online chat, video call, point-to-point breakpoint continuation, * * * file sharing, network hard disk, custom panel, QQ mailbox and other functions, and can connect various communication terminals.