SOURCE

var Main = {
    methods: {
      tableRowClassName({row, rowIndex}) {
        if (rowIndex === 1) {
          return 'warning-row';
        } else if (rowIndex === 3) {
          return 'success-row';
        }
        return '';
      }
    },
    data() {
      return {
        tableData2: [{
          date: '2016-05-02',
          name: '王小虎',
          address: '上海市普陀区金沙江路 1518 弄',
        }, {
          date: '2016-05-04',
          name: '王小虎',
          address: '上海市普陀区金沙江路 1518 弄'
        }, {
          date: '2016-05-01',
          name: '王小虎',
          address: '上海市普陀区金沙江路 1518 弄',
        }, {
          date: '2016-05-03',
          name: '王小虎',
          address: '上海市普陀区金沙江路 1518 弄'
        }]
      }
    }
  }
var Ctor = Vue.extend(Main)
new Ctor().$mount('#app')

<script src="//unpkg.com/vue/dist/vue.js"></script>
<script src="//unpkg.com/element-ui@2.4.11/lib/index.js"></script>
<div id="app">
<div class="test">
<template>
  <div class="lala">
  <el-table :data="tableData2" style="width: 100%" :row-class-name="tableRowClassName">
    <el-table-column prop="date" label="日期" width="180">
    </el-table-column>
    <el-table-column prop="name" label="姓名" width="180">
    </el-table-column>
    <el-table-column prop="address" label="地址">
    </el-table-column>
  </el-table>
  </div>
</template>
</div>
</div>

@import url("//unpkg.com/element-ui@2.4.11/lib/theme-chalk/index.css");
.el-table {
  background: #f0f9eb;
}
.el-table .warning-row{
      background: #f0f9eb;
  }
.el-table .success-row {
    background: #f0f9eb;
}