How to backup iphone contacts?

anyone know how to backup iphone contacts? well this is my first time using apple products and I’m kind of like an idiot, hope you don’t mind my silly question

connect your iphone with computer and open itunes, when itunes recognize your iphone, open the info tab and select to sync address book contacts, then click “apply”. If this is your first using iphone I suggest you go to apple’s support website to learn more basic uses, if you tired of itunes you can choose other iphone transfer to do your backup.

well,i have encountered this problem , i solve it by iphone transfer .and i share u all the page here “how to transfer iphone contact to PC.”

This thread has become a spam magnet, and since there have not been any useful replies for 3 months I am closing it.