如何del知識友-我的粉絲？

You can go to知識友-我的粉絲 And then, you will see your知識友-粉絲 and you use the del key to del your 知識友-粉絲 (the del key is on the right side ( or on the left side? I forget it))
Do you know it now?
I hope I can help you.