localStorage用法

if(window.localStorage){

 alert('这个浏览器支持本地存储');

}else{

 alert('这个浏览器支持不本地存储');

}

localStorage.a=3;//设置a为"3"

localStorage["a"]="sfsf";//设置a为"sfsf"，覆盖上面的值

localStorage.setItem("b","isaac");//设置b为"isaac"

var a1 = localStorage["a"];//获取a的值

var a2 = localStorage.a;//获取a的值

var b=localStorage.getItem("b");//获取b的值

localStorage.removeItem("c");//清除c的值

localStorage.removeItem("a")

通过localStorage.key(i)---取出所有key   localStorage.getItem( localStorage.key(i))--通过key取出所有value

    var localStorage = window.localStorage;

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

       alert(localStorage.key(i)+" "+localStorage.getItem( localStorage.key(i)))

   }