Use WeChat to search for "Changtong Code" or scan the QR code below to enter the public end of the Changtong Code mini-program; enter the mini-program, click on the mini-program home page of the "apply for Changtong Code"; the first time to apply for the need to log in! After entering the small program, click "Claim Changtong Code" in the homepage of the small program; to claim for the first time, you need to log in and register, fill in your personal information truthfully after logging in successfully with your real name and click "Claim Changtong Code" at the bottom of the page. "The first time you apply, you need to log in and register.