js 倒计时小练习

    <div>stage 2</div>
    <input type="date" style="width:400px;" id="text" />
    <input type="button" value="提交" id="submit" />
    <div style="border:1px" id="show"></div>

    $(document).ready(function(){
            $("#submit").click(function(){
                var date = $("#text").val();
                var dates = date.split("-");

                var date = new Date();
                date.setFullYear(dates[0],dates[1]-1,dates[2]);
                date = date.getTime();

                var song=setInterval(function(){
                            var nowDate = new Date();
                            nowDate = nowDate.getTime();
                            var a = Math.abs(nowDate-date);

                            if(a==0){
                                clearInterval(song);
                            }
                            var days=Math.floor(a/(24*3600*1000));
                            var b = a%(24*3600*1000);
                            var hours=Math.floor(b/(3600*1000));
                            var c = b%(3600*1000);
                            var minutes=Math.floor(c/(60*1000));
                            var d = c%(60*1000);
                            var seconds = Math.floor(d/(1000));
                            $("#show").html(days+"天"+hours+"时"+minutes+"分"+seconds+"秒");

                        },1000);
                

            })
            
        })