有沒有類似的demo供參考,每次只顯示一條！有什么方法可以讓第三條顯示完成后再繼續滑動顯示第一條么，而不是直接又到第一條！csshtml        <div class="content">        <ul class="list">             <li>test1</li>             <li>test2</li>             <li>test3</li>         </ul>         </div>JS   <script>         let i=0;        function goTop(){                                     ++i;                    // console.log(i);                     if(i==0){                         $(".list").css("top",0);                     }                    if(i<3){                     $(".list").animate({                        top:-40*i                     },1000)                 }                else{                                     i=-1;                 }                     }                 setInterval(goTop,1000);    </script>