Generally, the circular verification code turns the circular picture to the front position. For example, the pattern of the round verification code is a tall building, and it is upside down, so you need to turn it upside down. There is a drag slider below. Just drag the slider directly. Moreover, the cyclic verification code is different from the digital verification code, but the basic principle is the same. Captcha is a picture generated by a series of randomly generated numbers or symbols, and then some elements are added to the picture, so that users can identify the captcha information. After identifying the verification code information, the verification is successful, and a function can be used after the verification is successful. This circular verification code is very novel, which is different from the simple digital verification code in the past. I hope my answer is helpful to you.