localStorage保存帳號密碼

首先是判斷瀏覽器是否支持這一屬性，他是HTML5裏的屬性：

if(window.localStorage){
 alert('支持');
}else{
 alert('不支持');
}

 

localStorage.a = 3;//設置a爲"3"
localStorage["a"] = "sfsf";//設置a爲"sfsf"，覆蓋上面的值
localStorage.setItem("b","isaac");//設置b爲"isaac"
var a1 = localStorage["a"];//獲取a的值
var a2 = localStorage.a;//獲取a的值
var b = localStorage.getItem("b");//獲取b的值
localStorage.removeItem("c");//清除c的值

 

而後就是進登陸頁面填充

if (localStorage.key_id && localStorage.username)
{
　　$("#login_merchant_id").val(localStorage.key_id);
　　$("#login_username").val(localStorage.username);
} ;

 

帳號密碼正確時保存

localStorage.key_id = key_uni;
localStorage.username = username;