element table 拖拽拍讯

1、安装
  npm install sortablejs --save
  or
  yarn add sortablejs --save

2、使用  在需要使用的组件中引入
import Sortable from 'sortablejs'

3、定义方法
    getList() {
      this.listLoading = true
      getWorkTemplateList(this.listQuery).then(response => {
        this.list = response.data.records
        this.total = response.data.total
        this.listLoading = false

        this.oldList = this.list.map(v => v.id)
        this.newList = this.oldList.slice()
        this.$nextTick(() => {
          this.setSort()
        })
      })
    },

    setSort() {
      const el = this.$refs.dragTable.$el.querySelectorAll('.el-table__body-wrapper > table > tbody')[0]
      this.sortable = new Sortable(el, {
        ghostClass: 'sortable-ghost',
        setData: function(dataTransfer) {
          // to avoid Firefox bug
          // Detail see : https://github.com/RubaXa/Sortable/issues/1012
          dataTransfer.setData('Text', '')
        },
        // 监听拖动结束事件
        onEnd: evt => {
          const targetRow = this.list.splice(evt.oldIndex, 1)[0]
          this.list.splice(evt.newIndex, 0, targetRow)

          // for show the changes, you can delete in you code
          const tempIndex = this.newList.splice(evt.oldIndex, 1)[0]
          this.newList.splice(evt.newIndex, 0, tempIndex)
        }
      })
    },