Vue.Draggable实现拖拽效果

"dependencies": {  "element-ui": "^1.3.4",  "less": "^2.7.2",  "less-loader": "^4.0.4",  "vue": "^2.3.3",  "vue-router": "^2.3.1",  "vuedraggable": "^2.11.0" },

import draggable from 'vuedraggable'

components: {　　draggable},

<draggable v-model="tags" :move="getdata" @update="datadragEnd">    <transition-group>      <div v-for="element in tags" :key="element.id">        {{element.name}}      </div>    </transition-group></draggable>

 methods: {   getdata (evt) {    console.log(evt.draggedContext.element.id)   },   datadragEnd (evt) {    console.log('拖动前的索引 :' + evt.oldIndex)    console.log('拖动后的索引 :' + evt.newIndex)    console.log(this.tags)   }  }