浏览器Web开发者工具 ------ 控制台内管理cookie，indexedDB,localStorage,sessionStorage

document.cookie = 'username=123';

document.cookie = "username=;expires="+(new Date(0)).toGMTString(); //会立即销毁

//立即销毁key为username的cookie, Storage Cookes数据库内的键值对自动立即删除

document.cookie = "username=;expires=Thu, 01 Jan 1970 00:00:00 GMT"

document.cookie = 'username1=a123';

document.cookie = 'username2=b123';

document.cookie = 'username3=c123';

//立即销毁所有的cookie, Storage Cookes数据库内所有的键值对自动立即删除

var cookies = document.cookie.split(';');

for (var i = 0; i < cookies.length; i++) {

   var cookieName = cookies[i].split('=')[0];

   document.cookie = cookieName + "=; expires=" + new Date(0).toUTCString();
}


http://www.tfan.org/using-indexeddb/


localStorage.date1 = '{"content":{"img":"/static/img/listico1.jpg","content":"如何采取正确的方式进行救治1","date":"2015年11月28日14:14"}}';

localStorage.date2 = '{"content":{"img":"/static/img/listico2.jpg","content":"如何采取正确的方式进行救治2","date":"2015年11月28日14:14"}}';

localStorage.date3 = '{"content":{"img":"/static/img/listico3.jpg","content":"如何采取正确的方式进行救治3","date":"2015年11月28日14:14"}}';

localStorage['date1']

localStorage['date2']

localStorage['date3']

localStorage.clear();

var storage = window.localStorage;

storage.key1 = "hello";

storage["key2"] = "world";

console.log(storage.key1);

console.log(storage["key2"]);

localStorage.setItem("site", "js8.in");

var site = localStorage.getItem("site");

localStorage.removeItem("site");

sessionStorage.setItem("key1", "value1");

var value = sessionStorage.getItem("key1");     

sessionStorage.removeItem("key1");     

sessionStorage.clear();