给element-plus table 表头添加自定义class

<el-table class="margin-top-16" :data="selectedTableData" :header-cell-class-name="headerCellClassName" style="width: 100%" height="400">
                        <el-table-column prop="name" label="" min-width="130" />
                        <el-table-column>
                            <template #default="scope">
                                <el-icon :size="18"><CircleClose /></el-icon>
                            </template>
                        </el-table-column>
                    </el-table>

/**
 * 给表头添加class
 * @param param0 
 */
function headerCellClassName({ row, column, rowIndex, columnIndex }: any){
    if(rowIndex === 0){
        return 'el-table-header-cell-bg';
    }
}