Vue实现table列表项上下移动的示例代码

<template>
      <el-table :data="newsList">
        <el-table-column type="index"  label="序号" width="50"></el-table-column>
        <el-table-column prop="title" label="文章标题" min-width="300" ></el-table-column>
        <el-table-column prop="descript" label="文章描述" min-width="300" ></el-table-column>
        <el-table-column label="操作(素材排序)"  >
          <template slot-scope="scope">
            <el-button size="mini" type='text'    @click.stop="sortUp(scope.$index, scope.row)">向上↑ </el-button>
            <el-button size="mini" type='text'    @click.stop="sortDown(scope.$index, scope.row)">向下↓</el-button>
          </template>
        </el-table-column>
      </el-table>
</template>

upFieldOrder (index) {
      let temp = this.tableList[index-1];
      this.tableList[index-1]  = this.tableList[index]
      this.tableList[index] = temp
    },

    // 上移按钮
    sortUp (index, row) {
      if (index === 0) {
        this.$message({
          message: '已经是列表中第一个素材！',
          type: 'warning'
        })
      } else {
        let temp = this.newsList[index - 1]
        this.$set(this.newsList, index - 1, this.newsList[index])
        this.$set(this.newsList, index, temp)
      }
    },

    // 下移按钮
    sortDown (index, row) {
      if (index === (this.newsList.length - 1)) {
        this.$message({
          message: '已经是列表中最后一个素材！',
          type: 'warning'
        })
      } else {
        let i = this.newsList[index + 1]
        this.$set(this.newsList, index + 1, this.newsList[index])
        this.$set(this.newsList, index, i)
      }
    }