cf_clearance cookie

[dylanLii]

I have cracked the cloudfare changer token through the api according to the writing method of the document, but I found that after the page jump, cloudfare will re-enter a cookie on the new page, named cf_clearance. I compared this value with the value returned by the api. These two The values ​​are different, why? What I need to get is the value in the cookie.