效果图 :
代码 ：
1. 改变表头背景颜色（直接设置 header-cell-style）
<el-table:header-cell-style="{backgroundColor:'#4f81bd',color:'white',fontSize:'25px'}"></el-table>
2. 隔行变色
<template><div><el-table :row-class-name="tableRowClassName"></el-table></div></template><script>export default {methods: {tableRowClassName({ row, rowIndex }) {if (rowIndex % 2 === 1) {return "warning-row";} else {return "success-row";}},},};</script><style scoped lang="scss">::v-deep .el-table .warning-row {background: #d0d8e8;}::v-deep .el-table .success-row {background: #e9edf4;}</style>
