我想用 2 組數據創建引號文本滑塊。小提琴鏈接 -> https://jsfiddle.net/628r3t1h/(function() {    var quotes = $(".quotes");    var quoteIndex = -1;    function showNextQuote() {        ++quoteIndex;        quotes.eq(quoteIndex % quotes.length)        .fadeIn(1500)        .delay(1000)        .fadeOut(1000, showNextQuote);            }    showNextQuote();})();<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script><!-- set 1 --><h1 style="" class="sec1-head">Set 1<br/>    <span style="" class="quotes sec1-head-quotes">Text 1.1</span>    <span style="display: none;"  class="quotes sec1-head-quotes">Text 1.2</span>    <span style="display: none;"  class="quotes sec1-head-quotes">Text 1.3</span></h1><!-- set 2 --><h1 style="" class="sec1-head">Set 2<br/>    <span style="" class="quotes sec1-head-quotes">Text 2.1</span>    <span style="display: none;"  class="quotes sec1-head-quotes">Text 2.2</span>    <span style="display: none;"  class="quotes sec1-head-quotes">Text 2.3</span></h1>這里Set 1應該首先運行，然后Set 2應該是可見的。而且這個循環必須繼續下去。