localstorage的使用

1.获取对象

var localstroage = window.localStorage;

2.存储值

localstroage.setItem('openid','ksjhfkjajkdfjkszdjfksad');			localstroage.setItem('uid','10001');

3.获取值

var openid = localstroage.getItem('openid');

4.删除某个值

localstroage.removeItem('openid');

5.删除全部值

localstroage.clear();

6.遍历全部键值

localStorage.uid = 1;localStorage.sex='nan';localStorage.age = 23;for ( var i = 0, len = localStorage.length; i < len; ++i ) {    console.log( localStorage.key( i ) +':' + localStorage.getItem(localStorage.key( i ))  );}

注意：1.  假设不主动删除 localstorage  是不会自己主动清空的 不会像cookie一样清除

            2.  localstorage 差点儿支持大部分浏览器 不用考虑IE8 的问题 大小为 5M