<div>  <div class="navlist">   <ul>    <li class="navli" v-for="(item,index) in navList" :class="{'activeT':nowIndex===index}" @click="tabClick(index)"><i>{{item.name}}</i>    </li>   </ul>  </div>  <div class="swiper-container swiper_con">   <div class="swiper-wrapper">    <!-- 第一個swiper -->    <div class="swiper-slide" ref="viewBox">1111    </div>    <!-- 第二個swiper -->    <div class="swiper-slide">2222    </div>   </div>  </div> </div><script> export default {  name: "swiper",  data() {   return {    navList:[     {name:'熱門答疑'},     {name:'北清狀元'}    ],    nowIndex:0,   }  },  components:{  },  mounted() {   var that=this   that.mySwiper = new Swiper('.swiper-container',{     initialSlide:0,     autoplay:false,     keyboardControl:true,     autoHeight:true,     observer:true,     observeParents:true,     onSlideChangeStart:function(){      // console.log(that.mySwiper.activeIndex)      that.nowIndex=that.mySwiper.activeIndex     }    });   // this.getList();  },  methods: {   tabClick(index){    this.nowIndex = index    this.mySwiper.slideTo(index,1000,false)   },  }, created(id){  }}</script><style>.navlist{ width:100%; height:40px; border-bottom:1px solid rgba(151,151,151,0.1); position:relative;}.navli{ padding:10px 0px; text-align:center; float:left; margin:0 1.2rem;}.navli i{ font-style: normal; font-size: 16px;}.activeT{ color:#00ba6b; padding-bottom: .3rem; border-bottom: 2px solid #00ba6b;}.swiper_con{ width:100%; margin-bottom:40px; position:relative;} .choosegrand{ position:absolute; top:-3; right:0;}.show{ display:block;}.none{ display:none;}</style>