npm install -D vuedraggable

<script>
import draggable from 'vuedraggable'
export default {
 name: 'HelloWorld',
 components: {
  draggable
 },

<draggable v-model="groups" @chang="change" @start="start" @end="end" :move="move">
  <div v-for="(item, index) in groups" :key=index>
   item {{item}}
  </div>
</draggable>

methods: {
  change (event) {
   console.log('change', event)
  },
  start (event) {
   console.log('start', event)
  },
  end (event) {
   console.log('end', event, this.groups)
  },
  move (event, orgin) {
   console.log('move', event, orgin)
  }
}

<template>
 <div>
  排序
  <draggable v-model="groups" @chang="change" @start="start" @end="end" :move="move">
   <!-- <transition-group> -->
    <div v-for="(item, index) in groups" :key=index>
     item {{item}}
    </div>
   <!-- </transition-group> -->
  </draggable>
 </div>
</template>
<script>
import draggable from 'vuedraggable'
export default {
 name: 'HelloWorld',
 components: {
  draggable
 },
 data () {
  return {
   groups: [
    1, 2, 3, 4, 5
   ]
  }
 },
 methods: {
  change (event) {
   console.log('change', event)
  },
  start (event) {
   console.log('start', event)
  },
  end (event) {
   console.log('end', event, this.groups)
  },
  move (event, orgin) {
   console.log('move', event, orgin)
  }
 }
}
</script>

<style scoped>

</style>