vue修改Element的el-table样式的4种方法

<template>
  <div>
    <div style="width:700px;margin: 0 auto;">
    <el-table
      :data="tableData"
      height="300"
      border
      stripe="true"
      :row-style="tableRowStyle"
      :header-cell-style="tableHeaderColor"
      style="width: 100%">
      <el-table-column
        prop="tag"
        label="tag"
        width="150">
      </el-table-column>
      <el-table-column
        prop="confidence"
        label="confidence"
        width="180">
      </el-table-column>
      <el-table-column
        prop="category_tag_level"
        label="category_tag_level">
      </el-table-column>
    </el-table>
    </div>
  </div>
</template>
<script>

  export default{
    data () {
      return {
        tableData: [{
          tag: '体育',
          confidence: '0.8213628173213',
          category_tag_level: '123'
        }, {
          tag: '体育',
          confidence: '0.8213628173213',
          category_tag_level: '123'
        }, {
          tag: '体育',
          confidence: '0.8213628173213',
          category_tag_level: '123'
        }, {
          tag: '体育',
          confidence: '0.8213628173213',
          category_tag_level: '123'
        }, {
          tag: '体育',
          confidence: '0.8213628173213',
          category_tag_level: '123'
        }, {
          tag: '体育',
          confidence: '0.8213628173213',
          category_tag_level: '123'
        }, {
          tag: '体育',
          confidence: '0.8213628173213',
          category_tag_level: '123'
        }]

      }
    },
    methods:{
      //设置表格行的样式
      tableRowStyle({row,rowIndex}){
        return 'background-color:pink;font-size:15px;'
      },
      //设置表头行的样式
      tableHeaderColor({row,column,rowIndex,columnIndex}){
        return 'background-color:lightblue;color:#fff;font-wight:500;font-size:20px;text-align:center'

      }
    }
  }
</script>
<style>
</style>