The main thing is to save the website server resources in addition to the convenience of computer users, the user website server to identify the computer user identity can be understood as a result of the cookie this thing, as long as the first time successfully logged on to this site, the next time or because the cookie can not need to log on to log on directly, the equivalent of a user The first time I saw a cookie, I was able to get it to work.

When browsing the web, we often log on to a variety of websites. In particular, forums or online shopping malls are a kind of login site, will often encounter remember the password or a week to avoid logging in such a prompt, after the election, you will find that the computer next time to visit these sites do not need to log in again, and can be directly to the user login status to browse the site.