How to turn off the junk information of the calendar?

Open the calendar App, click "Calendar" at the bottom to enter the subscription page, click the exclamation mark behind the personal/work calendar, close the "Schedule Reminder" and delete the calendar. Open the settings, click on your Apple ID account, then enter the iCloud page, find the calendar option, and turn off the calendar iCloud synchronization switch.

Open the calendar App, click "Calendar" at the bottom to enter the subscription page, click the exclamation mark behind the personal/work calendar, close the "Schedule Reminder" and delete the calendar. Open the settings, click on your Apple ID account, then enter the iCloud page, find the calendar option, and turn off the calendar iCloud synchronization switch.

Open the calendar App, click "Calendar" at the bottom to enter the subscription page, click the exclamation mark behind the personal/work calendar, close the "Schedule Reminder" and delete the calendar. Open the settings, click on your Apple ID account, then enter the iCloud page, find the calendar option, and turn off the calendar iCloud synchronization switch.