element-ui Collapse 折叠面板拖动改变顺序

在实际开发中需要用到Collapse 折叠面板但是同时需要能够实现拖动折叠面板改变顺序的功能，我的实现方法是引用Vue.Draggable

安装
npm install vuedraggable
在需要的文件引入
import draggable from 'vuedraggable'

调用组件

element="el-collapse"表示使用的是el-collapse

<draggable v-model="bodyList"  element="el-collapse">

  <div v-for="item in bodyList" :key="item.id">

     <el-collapse-item>

     </el-collapse-item>

 </div>
</draggable>

draggable 的各种事件

<!--start事件的用法-->
<template>
  <div>
    <!--使用draggable组件-->
    <div class="itxst">
      <div style="padding-left:10px">start事件例子</div>
      <div class="col">
        <draggable v-model="arr1" group="itxst" @start="start" animation="300">
          <transition-group>
            <div
              :class="item.id==1?'item forbid':'item'"
              v-for="item in arr1"
              :key="item.id"
            >{{item.name}}</div>
          </transition-group>
        </draggable>
      </div> 
    </div>
  </div>
</template>
<script>
//导入draggable组件
import draggable from "vuedraggable";
export default {
  //注册draggable组件
  components: {
    draggable
  },
  data() {
    return {
      //定义要被拖拽对象的数组
      arr1: [
        { id: 1, name: "www.itxst.com" },
        { id: 2, name: "www.jd.com" },
        { id: 3, name: "www.baidu.com" },
        { id: 5, name: "www.google.com" },
        { id: 4, name: "www.taobao.com" }
      ] 
    };
  },
  methods: {
    //开始拖拽事件
    start(e) {
      console.log(e);
    } 
  }
};
</script>
<style scoped>
.itxst {
  margin: 10px;
  text-align: left;
}
.col {
  width: 40%;
  flex: 1;
  padding: 10px;
  border: solid 1px #eee;
  border-radius: 5px;
  float: left;
}
.col + .col {
  margin-left: 10px;
}
.item {
  padding: 6px 12px;
  margin: 0px 10px 0px 10px;
  border: solid 1px #eee;
  background-color: #f1f1f1;
  text-align: left;
}
.item + .item {
  border-top: none;
  margin-top: 6px;
}

.item:hover {
  background-color: #fdfdfd;
  cursor: move;
}
.item2 {
  padding: 6px 12px;
  margin: 0px 10px 0px 10px;
  border: solid 1px #eee;
  background-color: pink;
  text-align: left;
}
.item2 + .item2 {
  border-top: none;
  margin-top: 6px;
}

.item2:hover {
  outline: solid 1px #ddd;
  cursor: move;
}
</style>