1. First click "More Options" at the bottom of the login interface.
2. Then select "Log in to another account".
3. Select "Log in with micro signal /QQ number/email address".
4. Fill in the QQ account password.
5. Finally, click Login to log in. No special registration is required to log in with QQ.
Precautions:
Log in to WeChat with QQ, although you don't need to register, you still need to fill in the information after logging in and set the micro signal to bind the mobile phone.