element table列表根据数据设置背景色

    <el-table :data="tableData" style="width: 100%" :cell-class-name="myclass">
      <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>

      tableData: [
        {
          date: "2023-05-02",
          name: "兔子先森",
          address: "上海市普陀区金沙江路 1518 弄",
          isShow: 1,
        },
        {
          date: "2023-05-04",
          name: "兔子先森",
          address: "上海市普陀区金沙江路 1517 弄",
          isShow: 1,
        },
        {
          date: "2023-05-01",
          name: "兔子先森",
          address: "上海市普陀区金沙江路 1519 弄",
          isShow: 0,
        },
        {
          date: "2023-05-03",
          name: "兔子先森",
          address: "上海市普陀区金沙江路 1516 弄",
          isShow: 2,
        },
      ],

    // 修改单元格样式的方法
    myclass({ row, column, rowIndex, columnIndex }) {
      // row当前行，column表格列，rowIndex表格的第几行，columnIndex第几个格子
      // 根据当前行的参数判断，修改当前行样式
      if (row.isShow == 0) {
        return "setclass";
      } else if (row.isShow == 2) {
        return "setSuccess";
      }
      // 还可以设置对应单元格颜色
      // 表格的第二行-起始下标0
      if (rowIndex === 1) {
        // 第二行下标为1的格子
        if (columnIndex == 1) {
          return "setHeight";
        }
      }
    },

<style lang='scss'>
.setclass {
  background: yellow !important;
  color: red !important;
}
.setSuccess {
  background: green !important;
  color: white !important;
}
.setHeight {
  color: blue !important;
}
</style>

// 数据未上述列表数据
    isDanger() {
      this.tableData.forEach((el,index) => {
        if(index % 2 == 0){
          el.isShow = 0
        }else {
          el.isShow = 2
        }
      });
    }