swiper实现导航滚动效果

<div class="swiper-container city-column-course">
  <ul class="swiper-wrapper">
   <li class="swiper-slide on">
   <h4>推荐</h4>
   <p>Recommend</p>
   </li>
   <li class="swiper-slide">
   <h4>英语培训 </h4>
   <p>English training</p>
   </li>
   <li class="swiper-slide">
   <h4>早教 </h4>
   <p>Early education</p>
   </li>
   <li class="swiper-slide">
   <h4>设计培训 </h4>
   <p>Design training</p>
   </li>
   <li class="swiper-slide">
   <h4>舞蹈培训 </h4>
   <p>Dance training</p>
   </li>
   <li class="swiper-slide">
   <h4>艺考  </h4>
   <p>Art Examination</p>
   </li>
  </ul>
  </div>
  <div class="swiper-container city-course-list">
  <div class="tab-box swiper-wrapper">
   <ul class="index-column-course clearfix swiper-slide">
   <li>
    <a href="#" >
    <div class="course-item-logo">
     <img src="/UploadFiles/2021-04-02/12120_621da.jpg">

js：


var mySwiper = new Swiper('.city-column-course', {
   freeMode: true,
   freeModeMomentumRatio: 0.5,
   slidesPerView: 'auto',
 
 });
 //滑动列表，导航滑动到相应科目并居中显示
 var cityList = new Swiper('.city-course-list',{
 slidesPerView : 1,
 onSlideChangeEnd: function(swiper){
  var num=swiper.activeIndex;
  $(".city-column-course").find("li").eq(num).addClass("on").siblings("li").removeClass("on");
  slide = mySwiper.slides[num];
  slideLeft = slide.offsetLeft;
  slideWidth = slide.clientWidth;
  slideCenter = slideLeft + slideWidth / 2;
  // 被点击slide的中心点
  mySwiper.setWrapperTransition(300);
  
  if (slideCenter < swiperWidth / 2) {
  
    mySwiper.setWrapperTranslate(0);
  
  } else if (slideCenter > maxWidth) {
  
    mySwiper.setWrapperTranslate(maxTranslate);
  
  } else {
  
    nowTlanslate = slideCenter - swiperWidth / 2;
  
    mySwiper.setWrapperTranslate(-nowTlanslate);
  
  }
 }
 })
 swiperWidth = mySwiper.container[0].clientWidth;
 maxTranslate = mySwiper.maxTranslate();
 maxWidth = -maxTranslate + swiperWidth / 2;
 $(".city-column-course").on('touchstart', function (e) {
   e.preventDefault();
 });
 //document.addEventListener('touchmove', function (e) { e.preventDefault(); }, false);
 mySwiper.on('tap', function (swiper, e) {
   // e.preventDefault()
   slide = swiper.slides[swiper.clickedIndex];
   slideLeft = slide.offsetLeft;
   slideWidth = slide.clientWidth;
   slideCenter = slideLeft + slideWidth / 2;
   // 被点击slide的中心点
   mySwiper.setWrapperTransition(300);
 
   if (slideCenter < swiperWidth / 2) {
 
     mySwiper.setWrapperTranslate(0);
 
   } else if (slideCenter > maxWidth) {
 
     mySwiper.setWrapperTranslate(maxTranslate);
 
   } else {
 
     nowTlanslate = slideCenter - swiperWidth / 2;
 
     mySwiper.setWrapperTranslate(-nowTlanslate);
 
   }
   $(".city-column-course .on").removeClass('on');
   $(".city-column-course .swiper-slide").eq(swiper.clickedIndex).addClass('on');
 cityList.slideTo(swiper.clickedIndex, 500, false);//切换到第一个slide


});


2.需求：滑动这块，导航选中的元素随着变化



<ul class="index-column-edu-nav clearfix">
   <li class="on"><a href="javascript:;" >培训汇</a></li>
   <li><a href="javascript:;" >最新知识</a></li>
   <li><a href="javascript:;" >品牌专题</a></li>
  </ul>
  <div class="swiper-container index-edu-swiper">
   <div class="tab-box swiper-wrapper">
   <dl class="index-column-xun swiper-slide">
    <dd class="clearfix">
    <div class="index-xun-item-left fl">
     <a href="#" class="title">英语口语小技巧分享</a>
     <p class="date">2020年09月27日</p>
    </div>
    <a href="#" class="index-xun-item-right fr">
     <img src="/UploadFiles/2021-04-02/34340_4a110b.jpg">

js：


//js
var indexEdu = new Swiper('.index-edu-swiper',{
 slidesPerView : 1,
 onSlideChangeEnd: function(swiper){
  var num=swiper.activeIndex;
  $(".index-column-edu-nav").find("li").eq(num).addClass("on").siblings("li").removeClass("on");
 }
 })
 $(document).on("click",".index-column-edu-nav li",function(){
 $(this).addClass("on").siblings("li").removeClass("on");
 var num=$(this).index();
 indexEdu.slideTo(num, 500, false);//切换到第n个slide，速度为1秒
 })


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