element-UI table选中行背景颜色修改

<style lang="less" scoped>


  /** 表单间距 */
  ::v-deep .el-table--striped .el-table__body tr.el-table__row--striped.current-row td, .el-table__body tr.current-row>td {
      color: #fff;
      background-color: #a2a4a7!important;
  }

  ::v-deep .el-table__body tr.current-row>td.el-table__cell 
  { color: #fff;
      background-color: #a2a4a7!important;
  }

</style>