js实现页面弹框，每天没个浏览器只在第一次访问会有弹框

localStorage.getItem方法

<script type="text/javascript">
    function GetDateStr(AddDayCount) {
        var dd = new Date();
        dd.setDate(dd.getDate()+AddDayCount);//获取AddDayCount天后的日期
        var y = dd.getFullYear();
        var m = dd.getMonth()+1;//获取当前月份的日期
        var d = dd.getDate();
        return y+"-"+m+"-"+d;
    }
    var nowtime = new Date().valueOf();    //当前的日期
    var onetime = Date.parse(GetDateStr(1)); //获取第二天的日期

    if(localStorage.getItem("name")){
        if(nowtime>localStorage.getItem("name")){
            localStorage.setItem("name",onetime);
            $(".style-switcher").css('display','block')
        }
    }else{
        localStorage.setItem("name",onetime);
        //
        $(".style-switcher").css('display','block')
    }
    
</script>