例如图片显示的这种图片列表、商品展示需要拖动图片改变顺序，vuedraggable可以实现拖拽。

首先，

npm i vuedraggable

然后在组件中引入，

import draggable from 'vuedraggable';

定义组件，

components: {
    draggable,
  },

标签中应用，

<ul class="pic-list clearfix">
              <draggable class="list-group" v-model="hotVOList" :options="{animation: 60,}"
                :move="getdata" @update="datadragEnd">
                <li v-for="(child,index) in hotVOList" :key="index">
                  <img :src="child.picServerUrl1" alt="">
                  <div class="edit-pop dn"></div>
                  <!-- <div class="edit-box dn">
                    <span class="banner-edit-btn" @click="eidtBanner(child.id)">编辑</span>
                    <span class="banner-cancle-btn" @click="delateBanner(child.id)">删除</span>
                  </div> -->
                  <img class="prod-choose" v-if="child.flag == 1" src="../../assets/images/not-select.png" alt="" @click="selectProd(child.decorateId)"> 
                  <img class="prod-choose" v-else-if="child.flag == 2" src="../../assets/images/prod-select.png" @click="selectProd2(child.decorateId)" alt="">
                  <div class="edit-box-bottom" v-if="child.property == 1">
                    <span class="conf-con">{{ child.goodsName }}</span>
                    <p class="product-money"><span class="lower">低至</span>￥{{ child.lowestPrice }}</p>
                  </div>
                  <div class="edit-box-bottom" v-else>
                    <span class="conf-con">{{ child.goodsName }}</span>
                    <p class="product-money">
                      <img src="../../assets/images/yuedu.png" alt="">
                      <span class="browseNum ">{{ child.browseNum }}</span>
                      <img src="../../assets/images/zan.png" alt="">
                      <span class="browseNum ">{{ child.thumbNum }}</span>
                    </p>
                  </div>
                </li>
              </draggable>
            </ul>

方法，

getdata (data) {
      
    },
    datadragEnd (evt) {
      var oneId = "";
      var otherId = "";
        // console.log('datadragEnd方法');
      console.log('拖动前的索引 :' + evt.oldIndex)
      console.log('拖动后的索引 :' + evt.newIndex)
      
      if(evt.newIndex == this.hotVOList.length - 1 && this.pageData.pageNum < Math.ceil(this.pageData.total/10)){
        this.$api.get("/mallConfig/hot_goods_list/" + this.addHotMallID,{
          pageNum:this.pageData.pageNum+1,
          pageSize:this.pageData.pageSize
        },
        su => {
          if (su.httpCode == 200) {
            this.newHotVOList = su.data.hotVOList;
            oneId = su.data.hotVOList[0].decorateId;
            otherId = this.hotVOList[evt.newIndex].decorateId;
            this.$api.get(
              "/mallConfig/hot_product/exchage_turn/" + this.addHotMallID,
              {
                oneId: oneId,
                otherId :otherId,
              },
              su => {
                if (su.httpCode == 200) {
                  this.getBodyList(this.addHotMallID);
                }
              },
              err => {},
              { accessToken: sessionStorage.getItem("accessToken") }
            );
          }
        },
        err => {},
        { accessToken: sessionStorage.getItem("accessToken") })
      } else if(evt.newIndex == this.hotVOList.length - 1 && this.pageData.pageNum == Math.ceil(this.pageData.total/10)){
        otherId = this.hotVOList[evt.newIndex].decorateId;
        oneId = -1;
        this.$api.get(
          "/mallConfig/hot_product/exchage_turn/" + this.addHotMallID,
          {
            oneId: oneId,
            otherId :otherId,
          },
          su => {
            if (su.httpCode == 200) {
              this.getBodyList(this.addHotMallID);
            }
          },
          err => {},
          { accessToken: sessionStorage.getItem("accessToken") }
        );
      } else {
        otherId = this.hotVOList[evt.newIndex].decorateId;
        oneId = this.hotVOList[evt.newIndex + 1].decorateId;
        this.$api.get(
          "/mallConfig/hot_product/exchage_turn/" + this.addHotMallID,
          {
            oneId: oneId,
            otherId :otherId,
          },
          su => {
            if (su.httpCode == 200) {
              this.getBodyList(this.addHotMallID);
            }
          },
          err => {},
          { accessToken: sessionStorage.getItem("accessToken") }
        );
      }
    },

datadragEnd是调换结束调用的，里面可以根据需求处理一些数据。