About Cookie:
- Cookie is a text file that some of the data stored on your computer in
- Cookie addresses the user information on how to record customer orders after the connection is closed
- Cookie stored in the form of key-value pairs, e.g. username = John Doe
- By default, cookie deleted when the browser is closed
JavaScript与Cookie：
Document.cookie use to create, read, delete cookies
Read cookie:
var x = document.cookie;
Modify cookie:
document.cookie = "name=value; name1=value1";