其实提供的接口很简单，localStorage 和 sessionStorage 的用法是一样的。

• 设置数据：setItem(name, value)

• 获取数据：getItem(name)

• 删除键值：removeItem(name)

• 删除所有键值：clear()

例如：

localStorage.setItem('name', 'wenzhixin');localStorage.getItem('name'); //'wenzhixin'localStorage.removeItem('name'); localStorage.clear();

当然，你也可以使用普通的对象用法：

localStorage.name = 'wenzhixin';localStorage['name'] = 'wenzhixin';localStorage.name; //'wenzhixin'localStorage['name']; //'wenzhixin' delete localStorage.name;//删除键值 delete localStorage['name'];//删除键值

在实际使用中，会先将数据转换为 JSON，作为字符存储，如：

localStorage[name] = JSON.stringify(value); //存储JSON.parse(localStorage[name]); //读取 --------------------------------------

if(typeof(Storage)!=="undefined")

{

localStorage.lastname="Smith";

document.getElementById("result").innerHTML="Last name: " + localStorage.lastname;

}

else

{

document.getElementById("result").innerHTML="Sorry, your browser does not support web storage...";

}