It is convenient for users to avoid the login process when logging in again.

But this function is useless for mobile phones.

Few mobile websites log in through cookie.

Basically, by saving bookmarks. Like cookies on the internet. Record the websites you have visited online. It can improve the speed of landing on the website of the previous landing country. Sometimes you can also record the account password of the login website or something. Next time you go to this website, you don't have to go in. It is very convenient to use. It doesn't make any difference if you delete it.

Cookie function is to prevent you from repeatedly entering user name, password and other content when surfing the Internet. Can only be set in the browser. Take uc browser as an example. In Settings-Security Settings-Save Password-Select Automatically Save Password, and then bookmark frequently visited web pages. Of course, some web pages will also prompt "automatic login next time".